1
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Cheng P, An Y, Jen AKY, Lei D. New Nanophotonics Approaches for Enhancing the Efficiency and Stability of Perovskite Solar Cells. Adv Mater 2024; 36:e2309459. [PMID: 37878233 DOI: 10.1002/adma.202309459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 10/13/2023] [Indexed: 10/26/2023]
Abstract
Over the past decade, the power conversion efficiency (PCE) of perovskite solar cells (PSCs) has experienced a remarkable ascent, soaring from 3.8% in 2009 to a remarkable record of 26.1% in 2023. Many recent approaches for improving PSC performance employ nanophotonic technologies, from light harvesting and thermal management to the manipulation of charge carrier dynamics. Plasmonic nanoparticles and arrayed dielectric nanostructures have been applied to tailor the light absorption, scattering, and conversion, as well as the heat dissipation within PSCs to improve their PCE and operational stability. In this review, it is begin with a concise introduction to define the realm of nanophotonics by focusing on the nanoscale interactions between light and surface plasmons or dielectric photonic structures. Prevailing strategies that utilize resonance-enhanced light-matter interactions for boosting the PCE and stability of PSCs from light trapping, carrier transportation, and thermal management perspectives are then elaborated, and the resultant practical applications, such as semitransparent photovoltaics, colored PSCs, and smart perovskite windows are discussed. Finally, the state-of-the-art nanophotonic paradigms in PSCs are reviewed, and the benefits of these approaches in improving the aesthetic effects and energy-saving character of PSC-integrated buildings are highlighted.
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Affiliation(s)
- Pengfei Cheng
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, Hong Kong, 999077, China
- The Hong Kong Institute for Clean Energy, City University of Hong Kong, Kowloon, Hong Kong, 999077, China
| | - Yidan An
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, Hong Kong, 999077, China
- The Hong Kong Institute for Clean Energy, City University of Hong Kong, Kowloon, Hong Kong, 999077, China
| | - Alex K-Y Jen
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, Hong Kong, 999077, China
- The Hong Kong Institute for Clean Energy, City University of Hong Kong, Kowloon, Hong Kong, 999077, China
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, 999077, China
- State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong, 999077, China
| | - Dangyuan Lei
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, Hong Kong, 999077, China
- The Hong Kong Institute for Clean Energy, City University of Hong Kong, Kowloon, Hong Kong, 999077, China
- Hong Kong Branch of National Precious Metals Material Engineering Research Centre, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
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2
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Sannomiya T, Matsukata T, Yamamoto N. Controllable Chiral Light Generation and Vortex Field Investigation Using Plasmonic Holes Revealed by Cathodoluminescence. Nano Lett 2024; 24:929-934. [PMID: 38173237 PMCID: PMC10811657 DOI: 10.1021/acs.nanolett.3c04262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 12/19/2023] [Accepted: 12/20/2023] [Indexed: 01/05/2024]
Abstract
Control of the angular momentum of light is a key technology for next-generation nano-optical devices and optical communications, including quantum communication and encoding. We propose an approach to controllably generate circularly polarized light from a circular hole in a metal film using an electron beam by coherently exciting transition radiation and light scattering from the hole through surface plasmon polaritons. The circularly polarized light generation is confirmed by fully polarimetric four-dimensional cathodoluminescence mapping, where angle-resolved spectra are simultaneously obtained. The obtained intensity and Stokes maps show clear interference fringes as well as almost fully circularly polarized light generation with controllable parities by the electron beam position. By applying this approach to a three-hole system, a vortex field with a phase singularity is visualized in the middle of three holes.
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Affiliation(s)
- Takumi Sannomiya
- Department
of Materials Science and Technology, Tokyo
Institute of Technology, 4259 Nagatsuta Midoriku, Yokohama 226-8503, Japan
| | - Taeko Matsukata
- Department
of Materials Science and Technology, Tokyo
Institute of Technology, 4259 Nagatsuta Midoriku, Yokohama 226-8503, Japan
| | - Naoki Yamamoto
- Department
of Materials Science and Technology, Tokyo
Institute of Technology, 4259 Nagatsuta Midoriku, Yokohama 226-8503, Japan
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3
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Wang F, Wang X, Lu X, Huang C. Nanophotonic Enhanced Chiral Sensing and Its Biomedical Applications. Biosensors (Basel) 2024; 14:39. [PMID: 38248416 DOI: 10.3390/bios14010039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 01/03/2024] [Accepted: 01/10/2024] [Indexed: 01/23/2024]
Abstract
Chiral sensing is crucial in the fields of biology and the pharmaceutical industry. Many naturally occurring biomolecules, i.e., amino acids, sugars, and nucleotides, are inherently chiral. Their enantiomers are strongly associated with the pharmacological effects of chiral drugs. Owing to the extremely weak chiral light-matter interactions, chiral sensing at an optical frequency is challenging, especially when trace amounts of molecules are involved. The nanophotonic platform allows for a stronger interaction between the chiral molecules and light to enhance chiral sensing. Here, we review the recent progress in nanophotonic-enhanced chiral sensing, with a focus on the superchiral near-field and enhanced circular dichroism (CD) spectroscopy generated in both the dielectric and in plasmonic structures. In addition, the recent applications of chiral sensing in biomedical fields are discussed, including the detection and treatment of difficult diseases, i.e., Alzheimer's disease, diabetes, and cancer.
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Affiliation(s)
- Fei Wang
- Institute of Microelectronics of the Chinese Academy of Sciences, Beijing 100029, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xue Wang
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Xinchao Lu
- Institute of Microelectronics of the Chinese Academy of Sciences, Beijing 100029, China
| | - Chengjun Huang
- Institute of Microelectronics of the Chinese Academy of Sciences, Beijing 100029, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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4
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Estime B, Ren D, Sureshkumar R. Tailored Fabrication of Plasmonic Film Light Filters for Enhanced Microalgal Growth and Biomass Composition. Nanomaterials (Basel) 2023; 14:44. [PMID: 38202499 PMCID: PMC10780999 DOI: 10.3390/nano14010044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 12/17/2023] [Accepted: 12/21/2023] [Indexed: 01/12/2024]
Abstract
Through plasmon resonance, silver and gold nanoparticles can selectively backscatter light within different regions of the visible electromagnetic spectrum. We engineered a plasmonic film technology that utilizes gold and silver nanoparticles to enhance light at the necessary wavelengths for microalgal photosynthetic activities. Nanoparticles were embedded in a polymeric matrix to fabricate millimeter-thin plasmonic films that can be used as light filters in microalgal photobioreactors. Experiments conducted with microalga Chlamydomonas reinhardtii proved that microalgal growth and photosynthetic pigment production can be increased by up to 50% and 78%, respectively, by using these plasmonic film light filters. This work provides a scalable strategy for the efficient production of specialty chemicals and biofuels from microalgae through irradiation control with plasmonic nanoparticles.
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Affiliation(s)
- Bendy Estime
- Department of Biomedical and Chemical Engineering, Syracuse University, Syracuse, NY 13244, USA; (B.E.); (D.R.)
- Merck & Co., Inc., 770 Sumneytown Pike, West Point, PA 19486, USA
| | - Dacheng Ren
- Department of Biomedical and Chemical Engineering, Syracuse University, Syracuse, NY 13244, USA; (B.E.); (D.R.)
- Department of Civil and Environmental Engineering, Syracuse University, Syracuse, NY 13244, USA
- Department of Biology, Syracuse University, Syracuse, NY 13244, USA
- BioInspired Institute, Syracuse University, Syracuse, NY 13244, USA
| | - Radhakrishna Sureshkumar
- Department of Biomedical and Chemical Engineering, Syracuse University, Syracuse, NY 13244, USA; (B.E.); (D.R.)
- BioInspired Institute, Syracuse University, Syracuse, NY 13244, USA
- Department of Physics, Syracuse University, Syracuse, NY 13244, USA
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5
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Ma J, Yu J, Chen G, Bai Y, Liu S, Hu Y, Al-Mamun M, Wang Y, Gong W, Liu D, Li Y, Long R, Zhao H, Xiong Y. Rational Design of N-Doped Carbon-Coated Cobalt Nanoparticles for Highly Efficient and Durable Photothermal CO 2 Conversion. Adv Mater 2023; 35:e2302537. [PMID: 37471253 DOI: 10.1002/adma.202302537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 07/01/2023] [Accepted: 07/14/2023] [Indexed: 07/22/2023]
Abstract
Photothermal CO2 hydrogenation to high-value-added chemicals and fuels is an appealing approach to alleviate energy and environmental concerns. However, it still relies on the development of earth-abundant, efficient, and durable catalysts. Here, the design of N-doped carbon-coated Co nanoparticles (NPs), as a photothermal catalyst, synthesized through a two-step pyrolysis of Co-based ZIF-67 precursor, is reported. Consequently, the catalyst exhibits remarkable activity and stability for photothermal CO2 hydrogenation to CO with a 0.75 mol gcat -1 h-1 CO production rate under the full spectrum of light illumination. The high activity and durability of these Co NPs are mainly attributed to the synergy of the attuned size of Co NPs, the thickness of carbon layers, and the N doping species. Impressively, the experimental characterizations and theoretical simulations show that such a simple N-doped carbon coating strategy can effectively facilitate the desorption of generated CO and activation of reactants due to the strong photothermal effect. This work provides a simple and efficient route for the preparation of highly active and durable nonprecious metal catalysts for promising photothermal catalytic reactions.
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Affiliation(s)
- Jun Ma
- School of Chemistry and Materials Science, Hefei National Research Center for Physical Sciences at the Microscale, National Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
- Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou, Jiangsu, 215123, P. R. China
| | - Jing Yu
- Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, Jiangsu, 210023, P. R. China
| | - Guangyu Chen
- School of Chemistry and Materials Science, Hefei National Research Center for Physical Sciences at the Microscale, National Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Yu Bai
- School of Chemistry and Materials Science, Hefei National Research Center for Physical Sciences at the Microscale, National Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Shengkun Liu
- School of Chemistry and Materials Science, Hefei National Research Center for Physical Sciences at the Microscale, National Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Yangguang Hu
- School of Chemistry and Materials Science, Hefei National Research Center for Physical Sciences at the Microscale, National Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Mohammad Al-Mamun
- Centre for Catalysis and Clean Energy, Gold Coast Campus, Griffith University, Queensland, 4222, Australia
| | - Yu Wang
- Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, Jiangsu, 210023, P. R. China
| | - Wanbing Gong
- School of Chemistry and Materials Science, Hefei National Research Center for Physical Sciences at the Microscale, National Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Dong Liu
- School of Chemistry and Materials Science, Hefei National Research Center for Physical Sciences at the Microscale, National Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
- Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou, Jiangsu, 215123, P. R. China
| | - Yafei Li
- Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, Jiangsu, 210023, P. R. China
| | - Ran Long
- School of Chemistry and Materials Science, Hefei National Research Center for Physical Sciences at the Microscale, National Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Huijun Zhao
- Centre for Catalysis and Clean Energy, Gold Coast Campus, Griffith University, Queensland, 4222, Australia
| | - Yujie Xiong
- School of Chemistry and Materials Science, Hefei National Research Center for Physical Sciences at the Microscale, National Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
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6
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Yao J, Fang H, Li Y, Liu Z, Xu H, Ding T. Superplastic Nanomolding of Aluminum Waveguides for Subwavelength Light Routing, Splitting, and Encryption. ACS Nano 2023; 17:17342-17349. [PMID: 37638743 DOI: 10.1021/acsnano.3c05358] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/29/2023]
Abstract
Plasmonic nanowires (NWs) due to their polarization-dependent optics and enhanced light-matter interactions have presented vibrant capabilities in functional nanophotonic devices. However, current demonstrations have largely been based on chemically synthesized Ag NWs, which are extremely unstable and poorly functional. Here we show single-crystalline Al NWs can be fabricated by a superplastic nanomolding (SPNM) technique on a centimeter scale, which are earth-abundant and highly stable. They present robust properties of multimode waveguiding with long-term stability, high efficiency of beam splitting in response to the polarization, and durable thermal optical modulation, which can be readily applied as nanophotonic routers, splitters, and information encryptors. Moreover, this SNPM technique is extendable to other metals, which are highly exploitable for functional nanophotonic devices and integrated optical chips.
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Affiliation(s)
- Jiacheng Yao
- Key Laboratory of Artificial Micro/Nano Structure of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan 430072, People's Republic of China
| | - Hui Fang
- Department of Engineering Mechanics, School of Civil Engineering, Wuhan University, Wuhan, Hubei 430072, People's Republic of China
| | - Yong Li
- Key Laboratory of Artificial Micro/Nano Structure of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan 430072, People's Republic of China
| | - Ze Liu
- Department of Engineering Mechanics, School of Civil Engineering, Wuhan University, Wuhan, Hubei 430072, People's Republic of China
| | - Hongxing Xu
- Key Laboratory of Artificial Micro/Nano Structure of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan 430072, People's Republic of China
- Wuhan Institute of Quantum Technology, Wuhan 430206, People's Republic of China
| | - Tao Ding
- Key Laboratory of Artificial Micro/Nano Structure of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan 430072, People's Republic of China
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7
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Flowers JA, Farrell MJ, Rutherford G, Pradhan AK. Colorimetric and Label-Free Optical Detection of Pb 2+ Ions via Colloidal Gold Nanoparticles. Biosensors (Basel) 2023; 13:819. [PMID: 37622904 PMCID: PMC10452563 DOI: 10.3390/bios13080819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 07/31/2023] [Accepted: 08/09/2023] [Indexed: 08/26/2023]
Abstract
The detection of the lead heavy metal (Pb) in water is crucial in many chemical processes, as it is associated with serious health hazards. Here, we report the selective and precise colorimetric detection of Pb2+ ions in water, exploiting the aggregation and self-assembly mechanisms of glutathione (GSH)-functionalized gold nanoparticles (GNPs). The carboxyl functional groups are able to create coordination complexes with Pb2+, inducing aggregation amongst the GSH-GNPs in the presence of Pb2+ due to the chelation of the GSH ligands. The resulting aggregation amongst the GSH-GNPs in the presence of Pb2+ increases the aggregate size depending on the available Pb2+ ions, affecting the plasmonic coupling. This causes a substantial shift in the plasmon wavelength to a longer wavelength side with increasing Pb2+ concentration, resulting in a red-to-blue colorimetric or visual change, enabling the instant determination of lead content in water.
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Affiliation(s)
| | | | - Gugu Rutherford
- NASA Langley Research Center, Langley Boulevard, Hampton, VA 23681, USA
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8
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Krzemińska Z, Jacak WA. Anharmonicity of Plasmons in Metallic Nanostructures Useful for Metallization of Solar Cells. Materials (Basel) 2023; 16:ma16103762. [PMID: 37241384 DOI: 10.3390/ma16103762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 05/11/2023] [Accepted: 05/12/2023] [Indexed: 05/28/2023]
Abstract
Metallic nanoparticles are frequently applied to enhance the efficiency of photovoltaic cells via the plasmonic effect, and they play this role due to the unusual ability of plasmons to transmit energy. The absorption and emission of plasmons, dual in the sense of quantum transitions, in metallic nanoparticles are especially high at the nanoscale of metal confinement, so these particles are almost perfect transmitters of incident photon energy. We show that these unusual properties of plasmons at the nanoscale are linked to the extreme deviation of plasmon oscillations from the conventional harmonic oscillations. In particular, the large damping of plasmons does not terminate their oscillations, even if, for a harmonic oscillator, they result in an overdamped regime.
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Affiliation(s)
- Zofia Krzemińska
- Department of Quantum Technologies, Wrocław University of Science and Technology, Wyb. Wyspiańskiego 27, 50-370 Wrocław, Poland
| | - Witold A Jacak
- Department of Quantum Technologies, Wrocław University of Science and Technology, Wyb. Wyspiańskiego 27, 50-370 Wrocław, Poland
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9
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Hunley DC, Oliaei Motlagh SA, Ghimire R, Apalkov V. Ultrafast pulse pumping of topological nanospaser. J Phys Condens Matter 2023; 35. [PMID: 37071999 DOI: 10.1088/1361-648x/acce14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Accepted: 04/18/2023] [Indexed: 05/10/2023]
Abstract
We theoretically examine a topological nanospaser that is optically pumped using an ultra-fast circularly-polarized pulse. The spasing system consists of a silver nanospheroid, which supports surface plasmon (SP) excitations, and a transition metal dichalcogenide (TMDC) monolayer nanoflake. The silver nanospheroid screens the incoming pulse and creates a non-uniform spatial distribution of electron excitations in the TMDC nanoflake. These excitations decay into the localized SPs, which can be of two types with the corresponding magnetic quantum number ±1. The amount and the type of the generated SPs depend on the intensity of the optical pulse. For small pulse amplitude, only one plasmonic mode is predominantly generated, resulting in far-field elliptically polarized radiation. For large amplitude of the optical pulse, both plasmonic modes are generated in almost the same amount, resulting in linearly polarized far-field radiation.
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Affiliation(s)
- Dalton C Hunley
- Department of Physics and Astronomy, Georgia State University, Atlanta, GA 30303, United States of America
| | - S Azar Oliaei Motlagh
- Department of Physics and Astronomy, Georgia State University, Atlanta, GA 30303, United States of America
| | - Rupesh Ghimire
- Department of Physics and Astronomy, Georgia State University, Atlanta, GA 30303, United States of America
| | - Vadym Apalkov
- Department of Physics and Astronomy, Georgia State University, Atlanta, GA 30303, United States of America
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10
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Mir M. Spatial nonlocality effect on the surface plasmon propagation in plasmonic nanospheres waveguide. J Phys Condens Matter 2023; 35:205301. [PMID: 36867884 DOI: 10.1088/1361-648x/acc15f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 03/03/2023] [Indexed: 06/18/2023]
Abstract
Spatial nonlocality affects the plasmonic characteristics of nanostructures. We used the quasi-static hydrodynamic Drude model to obtain the surface plasmon excitation energies in various metallic nanosphere structures. The surface scattering and radiation damping rates were phenomenologically incorporated into this model. We demonstrate that spatial nonlocality increases the surface plasmon frequencies and total plasmon damping rates in a single nanosphere. This effect was amplified for small nanospheres and higher multipole excitation. In addition, we find that spatial nonlocality reduces the interaction energy between two nanospheres. We extended this model to a linear periodic chain of nanospheres. Then we obtain the dispersion relation of surface plasmon excitation energies using Bloch's theorem. We also show that spatial nonlocality decreases the group velocities and energy decay lengths of the propagating surface plasmon excitations. Finally, we demonstrated that the effect of spatial nonlocality is significant for very small nanospheres separated by short distances.
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Affiliation(s)
- Moslem Mir
- Department of Physics, University of Zabol (UOZ), Zabol 98615-538, Iran
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11
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Buendía Á, Sánchez-Gil JA, Giannini V. Exploiting Oriented Field Projectors to Open Topological Gaps in Plasmonic Nanoparticle Arrays. ACS Photonics 2023; 10:464-474. [PMID: 38021033 PMCID: PMC10664046 DOI: 10.1021/acsphotonics.2c01526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Indexed: 12/01/2023]
Abstract
In the last years there have been multiple proposals in nanophotonics to mimic topological condensed matter systems. However, nanoparticles have degrees of freedom that atoms lack of, like dimensions or shape, which can be exploited to explore topology beyond electronics. Elongated nanoparticles can act like projectors of the electric field in the direction of the major axis. Then, by orienting them in an array the coupling between them can be tuned, allowing to open a gap in an otherwise gapless system. As a proof of the potential of the use of orientation of nanoparticles for topology, we study 1D chains of prolate spheroidal silver nanoparticles. We show that in these arrays spatial modulation of the polarization allows to open gaps, engineer hidden crystalline symmetries and to switch on/off or left/right edge states depending on the polarization of the incident electric field. This opens a path toward exploiting features of nanoparticles for topology to go beyond analogues of condensed matter systems.
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Affiliation(s)
- Álvaro Buendía
- Instituto
de Estructura de la Materia, Consejo Superior de Investigaciones Científicas, Serrano 121, 28006Madrid, Spain
| | - Jose A. Sánchez-Gil
- Instituto
de Estructura de la Materia, Consejo Superior de Investigaciones Científicas, Serrano 121, 28006Madrid, Spain
| | - Vincenzo Giannini
- Instituto
de Estructura de la Materia, Consejo Superior de Investigaciones Científicas, Serrano 121, 28006Madrid, Spain
- Centre
of Excellence ENSEMBLE3 sp. z o.o., Wolczynska 133, Warsaw, 01-919, Poland
- Technology
Innovation Institute, Masdar City9639, Abu Dhabi, United Arab Emirates
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12
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Vashistha N, Abuleil MJ, Shrivastav AM, Bajaj A, Abdulhalim I. Real-Time Ellipsometric Surface Plasmon Resonance Sensor Using Polarization Camera May Provide the Ultimate Detection Limit. Biosensors (Basel) 2023; 13:173. [PMID: 36831938 PMCID: PMC9953146 DOI: 10.3390/bios13020173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 01/10/2023] [Accepted: 01/13/2023] [Indexed: 06/18/2023]
Abstract
Ellipsometric Surface Plasmon Resonance (SPR) sensors are known for their relatively simple optical configuration compared to interferometric and optical heterodyne phase interrogation techniques. However, most of the previously explored ellipsometric SPR sensors based on intensity measurements are limited by their real-time applications because phase or polarization shifts are conducted serially. Here we present an ellipsometric SPR sensor based on a Kretschmann-Raether (KR) diverging beam configuration and a pixelated microgrid polarization camera. The proposed methodology has the advantage of real-time and higher precision sensing applications. The short-term stability of the measurement using the ellipsometric parameters tanψ and cos(Δ) is found to be superior over direct SPR or intensity measurements, particularly with fluctuating sources such as laser diodes. Refractive index and dynamic change measurements in real-time are presented together with Bovine Serum Albumin (BSA)-anti-BSA antibody binding to demonstrate the potential of the developed sensor for biological sensing applications with a resolution of sub-nM and down to pM with additional optimization. The analysis shows that this approach may provide the ultimate detection limit for SPR sensors.
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13
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Zhou Y, Chen MN. Surface plasmons in anisotropic 3D gapped topological insulators. J Phys Condens Matter 2022; 35:085001. [PMID: 36541525 DOI: 10.1088/1361-648x/aca7aa] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 11/30/2022] [Indexed: 06/17/2023]
Abstract
Topological insulators (TIs) are materials having conductive surfaces but insulating bulk, which are ideal platforms for plasmonic applications. The most commonly known TIs, such as Bi2Se3and Bi2Te3, are in fact highly anisotropic. The dielectric constants are largely different parallel and perpendicular to the surface. Here, we have extended the electromagnetic calculations of the surface plasmons in TIs to the anisotropic case. Magnetic field perpendicular to the surface is allowed, which opens a gap among the surface states. We model anisotropic TIs as bulk dielectric materials with different in-plane and out-of-plane permittivities; the surface states caused by the band inversion lead to a two-dimensional conductivity which supports surface plasmons. We have found two rather than one surface modes. Due to such anisotropy, quasi transverse electric (TE) polarized mode may occur near the interband transition threshold. Far below the transition frequency, another mode with both TE and transverse magnetic polarized components dominates, the dispersion relation of which is seriously modified by the Hall conductivity. By taking Bi2Te3as an example, we have derived the conductivity tensor with the consideration of the hexagonal warping effect, and solved the above mentioned two surface plasmon modes. In the end, finite element method has been used to calculate the electric field distributions. Our extension of the electromagnetic calculations of surface plasmons including a specific kind of anisotropy might be useful in other surface conductive materials with similar symmetry as well.
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Affiliation(s)
- Yu Zhou
- School of Science, Hangzhou Dianzi University, Hangzhou 310018, People's Republic of China
| | - M N Chen
- School of Science, Hangzhou Dianzi University, Hangzhou 310018, People's Republic of China
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14
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Geng J, Yan W, Shi L, Qiu M. Quasicylindrical Waves for Ordered Nanostructuring. Nano Lett 2022; 22:9658-9663. [PMID: 36394454 DOI: 10.1021/acs.nanolett.2c03851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Laser-induced self-organization of periodic nanostructures on highly absorbing materials is widely understood to be due to interference between laser and surface plasmon polaritons (SPPs) that are excited by initial surface roughness. The structure order naturally emerges from the propagation phase of SPPs. Here, we reveal an unexplored mechanism that is predominantly induced by quasicylindrical waves (QCWs) with negligible contributions from SPPs. This mechanism features a new principle of order emergence in growth of periodic nanostructures through short-range electromagnetic interactions between QCWs and marginal nanofringes. In this scenario, the periodicity of nanostructures is not simply determined by the electromagnetic wavelength. With suppressed long-range interactions, the formation of nanostructures shows a domino-like growth process, thus significantly improving structure uniformity. An in situ microscopic observation is performed to characterize the temporal dynamics of structural growth and verify the new mechanism. Further, the QCWs are directly observed in experiments, which are theoretically supported by a scattering model.
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Affiliation(s)
- Jiao Geng
- Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, School of Engineering, Westlake University, 18 Shilongshan Road, Hangzhou 310024, Zhejiang Province, China
- Institute of Advanced Technology, Westlake Institute for Advanced Study, 18 Shilongshan Road, Hangzhou 310024, Zhejiang Province, China
| | - Wei Yan
- Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, School of Engineering, Westlake University, 18 Shilongshan Road, Hangzhou 310024, Zhejiang Province, China
- Institute of Advanced Technology, Westlake Institute for Advanced Study, 18 Shilongshan Road, Hangzhou 310024, Zhejiang Province, China
| | - Liping Shi
- Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, School of Engineering, Westlake University, 18 Shilongshan Road, Hangzhou 310024, Zhejiang Province, China
- Institute of Advanced Technology, Westlake Institute for Advanced Study, 18 Shilongshan Road, Hangzhou 310024, Zhejiang Province, China
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, 1037 Luoyu road, Wuhan 430079, China
| | - Min Qiu
- Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, School of Engineering, Westlake University, 18 Shilongshan Road, Hangzhou 310024, Zhejiang Province, China
- Institute of Advanced Technology, Westlake Institute for Advanced Study, 18 Shilongshan Road, Hangzhou 310024, Zhejiang Province, China
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15
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Zhang J, Li Q, Dai C, Cheng M, Hu X, Kim HS, Yang H, Preston DJ, Li Z, Zhang X, Lee WK. Hydrogel-Based, Dynamically Tunable Plasmonic Metasurfaces with Nanoscale Resolution. Small 2022; 18:e2205057. [PMID: 36269881 DOI: 10.1002/smll.202205057] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 10/02/2022] [Indexed: 06/16/2023]
Abstract
Flat metasurfaces with subwavelength meta-atoms can be designed to manipulate the electromagnetic parameters of incident light and enable unusual light-matter interactions. Although hydrogel-based metasurfaces have the potential to control optical properties dynamically in response to environmental conditions, the pattern resolution of these surfaces has been limited to microscale features or larger, limiting capabilities at the nanoscale, and precluding effective use in metamaterials. This paper reports a general approach to developing tunable plasmonic metasurfaces with hydrogel meta-atoms at the subwavelength scale. Periodic arrays of hydrogel nanodots with continuously tunable diameters are fabricated on silver substrates, resulting in humidity-responsive surface plasmon polaritons (SPPs) at the nanostructure-metal interfaces. The peaks of the SPPs are controlled reversibly by absorbing or releasing water within the hydrogel matrix, the matrix-generated plasmonic color rendering in the visible spectrum. This work demonstrates that metasurfaces designed with these spatially patterned nanodots of varying sizes benefit applications in anti-counterfeiting and generate multicolored displays with single-nanodot resolution. Furthermore, this work shows system versatility exhibited by broadband beam-steering on a phase modulator consisting of hydrogel supercell units in which the size variations of constituent hydrogel nanostructures engineer the wavefront of reflected light from the metasurface.
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Affiliation(s)
- Jian Zhang
- Information Research Center for EM Metamaterials and Institute of Advanced Magnetic Materials, College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou, 310018, China
| | - Qiang Li
- State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Chenjie Dai
- Electronic Information School, Wuhan University, Wuhan, 430072, China
| | - Mingliang Cheng
- Information Research Center for EM Metamaterials and Institute of Advanced Magnetic Materials, College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou, 310018, China
| | - Xin Hu
- Information Research Center for EM Metamaterials and Institute of Advanced Magnetic Materials, College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou, 310018, China
| | - Hyun-Sik Kim
- Department of Materials Science and Engineering, University of Seoul, Seoul, 02504, Korea
| | - Heesun Yang
- Department of Materials Science and Engineering, Hongik University, Seoul, 04066, Korea
| | - Daniel J Preston
- Department of Mechanical Engineering, Rice University, Houston, TX, 77006, USA
| | - Zhongyang Li
- Electronic Information School, Wuhan University, Wuhan, 430072, China
| | - Xuefeng Zhang
- Information Research Center for EM Metamaterials and Institute of Advanced Magnetic Materials, College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou, 310018, China
| | - Won-Kyu Lee
- Department of Materials Science and Engineering, Hongik University, Seoul, 04066, Korea
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16
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Cha L, Li P. Metallic On-Chip Light Concentrators Fabricated by In Situ Plasmonic Etching Technique. Nanomaterials (Basel) 2022; 12:4195. [PMID: 36500820 PMCID: PMC9739918 DOI: 10.3390/nano12234195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 11/19/2022] [Accepted: 11/23/2022] [Indexed: 06/17/2023]
Abstract
One-dimensional tapered metallic nanostructures are highly interesting for nanophotonic applications because of their plasmonic waveguiding and field-focusing properties. Here, we developed an in situ etching technique for unique tapered crystallized silver nanowire fabrication. Under the focused laser spot, plasmon-induced charge separation of chemically synthesized nanowires is excited, which triggers the uniaxial etching of silver nanowires along the radial direction with decreasing rate, forming tapered structures several micrometers long and with diameter attenuating from hundreds to tens of nanometers. These tapered metallic nanowires have smooth surfaces showing excellent performance for plasmonic waveguiding, and can be good candidates for nanocircuits and remote-excitation sources.
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Affiliation(s)
- Lihua Cha
- School of Law, Central University of Finance and Economics, Beijing 100081, China
| | - Pan Li
- Institute of Analysis and Testing, Beijing Academy of Science and Technology, Beijing 100089, China
- Department of Physics, Capital Normal University, Beijing 100048, China
- School of Information Technology, Beijing City University, Beijing 100083, China
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17
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Umm-I-Kalsoom, Ali N, Bashir S, Akbar S, Rafique MS, Alshehri AM, Begum N, Iqbal T, Anwar A. Nanosecond Laser Induced Surface Structuring of Cadmium after Ablation in Air and Propanol Ambient. Int J Mol Sci 2022; 23. [PMID: 36361538 DOI: 10.3390/ijms232112749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 09/30/2022] [Accepted: 10/04/2022] [Indexed: 12/01/2022] Open
Abstract
In the present study KrF Excimer laser has been employed to irradiate the Cadmium (Cd) targets for various number of laser pulses of 500, 1000, 1500 and 2000, at constant fluence of 3.6 J cm-2. Scanning Electron Microscopy (SEM) analysis was utilized to reveal the formation of laser induced nano/micro structures on the irradiated target (Cd) surfaces. SEM results show the generation of cavities, cracks, micro/nano wires/rods, wrinkles along with re-deposited particles during irradiation in air, whereas subsurface boiling, pores, cavities and Laser Induced Periodic Surface Structures (LIPSS) on the inner walls of cavities are revealed at the central ablated area after irradiation in propanol. The ablated volume and depth of ablated region on irradiated Cd targets are evaluated for various number of pulses and is higher in air as compared to propanol ambient. Fast Fourier Transform Infrared spectroscopy (FTIR), Energy Dispersive X-ray Spectroscopy (EDS) and X-ray Diffraction (XRD) analyses show the presence of oxides and hydro-oxides of Cd after irradiation in propanol, whereas the existence of oxides is observed after irradiation in air ambient. Nano-hardness tester was used to investigate mechanical modifications of ablated Cd. It reveals an increase in hardness after irradiation which is more pronounced in propanol as compared to air.
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18
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Youssef J, Zhu S, Crunteanu A, Orlianges JC, Ho HP, Bachelot R, Zeng S. Highly Sensitive Plasmonic Biosensors with Precise Phase Singularity Coupling on the Metastructures. Biosensors (Basel) 2022; 12:bios12100866. [PMID: 36291002 PMCID: PMC9599844 DOI: 10.3390/bios12100866] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 09/30/2022] [Accepted: 10/07/2022] [Indexed: 06/02/2023]
Abstract
In this paper, we demonstrated the ability of a plasmonic metasensor to detect ultra-low refractive index changes (in the order of ∆n = 10-10 RIU), using an innovative phase-change material, vanadium dioxide (VO2), as the sensing layer. Different from current cumbersome plasmonic biosensing setups based on optical-phase-singularity measurement, our phase signal detection is based on the direct measurement of the phase-related lateral position shift (Goos-Hänchen) at the sensing interface. The high sensitivity (1.393 × 108 μm/RIU for ∆n = 10-10 RIU), based on the Goos-Hänchen lateral shift of the reflected wave, becomes significant when the sensor is excited at resonance, due to the near-zero reflectivity dip, which corresponds to the absolute dark point (lower than 10-6). GH shifts in the order of 2.997 × 103 μm were obtained using the optimal metasurface configuration. The surface plasmon resonance (SPR) curves (reflectivity, phase, GH) and electromagnetic simulations were derived using the MATLAB programming algorithm (by the transfer matrix method) and Comsol modeling (by finite element analysis), respectively. These results will provide a feasible way for the detection of cancer biomarkers.
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Affiliation(s)
- Joelle Youssef
- Light, Nanomaterials & Nanotechnologies (L2n), CNRS-ERL 7004, Université de Technologie de Troyes, 10000 Troyes, France
| | - Shaodi Zhu
- Light, Nanomaterials & Nanotechnologies (L2n), CNRS-ERL 7004, Université de Technologie de Troyes, 10000 Troyes, France
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong 999077, China
| | - Aurelian Crunteanu
- XLIM Research Institute, UMR 7252 CNRS/University of Limoges, 123 Avenue Albert Thomas, 87060 Limoges, France
| | - Jean-Christophe Orlianges
- XLIM Research Institute, UMR 7252 CNRS/University of Limoges, 123 Avenue Albert Thomas, 87060 Limoges, France
| | - Ho-Pui Ho
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong 999077, China
| | - Renaud Bachelot
- Light, Nanomaterials & Nanotechnologies (L2n), CNRS-ERL 7004, Université de Technologie de Troyes, 10000 Troyes, France
| | - Shuwen Zeng
- Light, Nanomaterials & Nanotechnologies (L2n), CNRS-ERL 7004, Université de Technologie de Troyes, 10000 Troyes, France
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19
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Han X, Shen X, Zhou Y, Wang L, Ren Q, Cai Y, Abdi-Ghaleh R. Terahertz Vibrational Fingerprints Detection of Molecules with Particularly Designed Graphene Biosensors. Nanomaterials (Basel) 2022; 12:3422. [PMID: 36234549 PMCID: PMC9565571 DOI: 10.3390/nano12193422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Revised: 09/25/2022] [Accepted: 09/26/2022] [Indexed: 06/16/2023]
Abstract
In this research, an arc I-shaped graphene sensing structure with multi-resonance characteristics is proposed for the simultaneous detection of vibrational fingerprints with spectral separation in the terahertz range. The resonant frequencies of the sensor can be dynamically tuned by changing the gate voltage applied to the graphene arrays. The two vibrational fingerprints of lactose molecules (0.53 THz and 1.37 THz) in the transmission spectrum can be enhanced simultaneously by strictly optimizing the geometrical parameters of the sensor. More importantly, these two resonant frequencies can be tuned precisely to coincide with the two standard resonances of the lactose molecule. The physical mechanism of the sensor is revealed by inspection of the electric field intensity distribution, and the advantage of the sensor, which is its ability to operate at a wide range of incident angles, has been demonstrated. The sensing performance of the structure as a refractive index sensor has also been studied. Finally, a double arc I-shaped graphene sensor is further designed to overcome the polarization sensitivity, which demonstrates excellent molecular detection performance under different polarization conditions. This study may serve as a reference for designing graphene biosensors for molecular detection.
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Affiliation(s)
- Xiaobing Han
- College of Communication and Information Engineering, Xi’an University of Science and Technology, Xi’an 710054, China
| | - Xueqin Shen
- College of Communication and Information Engineering, Xi’an University of Science and Technology, Xi’an 710054, China
| | - Yuanguo Zhou
- College of Communication and Information Engineering, Xi’an University of Science and Technology, Xi’an 710054, China
| | - Lin Wang
- School of Electronics and Information Engineering, Beihang University, Beijing 100191, China
| | - Qiang Ren
- School of Electronics and Information Engineering, Beihang University, Beijing 100191, China
| | - Yijun Cai
- Fujian Provincial Key Laboratory of Optoelectronic Technology and Devices, Xiamen University of Technology, Xiamen 361024, China
| | - Reza Abdi-Ghaleh
- Department of Laser and Optical Engineering, University of Bonab, Bonab 5551761167, Iran
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20
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Rider MS, Arul R, Baumberg JJ, Barnes WL. Theory of strong coupling between molecules and surface plasmons on a grating. Nanophotonics 2022; 11:3695-3708. [PMID: 36061948 PMCID: PMC9381138 DOI: 10.1515/nanoph-2022-0301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 07/12/2022] [Accepted: 07/14/2022] [Indexed: 05/07/2023]
Abstract
The strong coupling of molecules with surface plasmons results in hybrid states which are part molecule, part surface-bound light. Since molecular resonances may acquire the spatial coherence of plasmons, which have mm-scale propagation lengths, strong-coupling with molecular resonances potentially enables long-range molecular energy transfer. Gratings are often used to couple incident light to surface plasmons, by scattering the otherwise non-radiative surface plasmon inside the light-line. We calculate the dispersion relation for surface plasmons strongly coupled to molecular resonances when grating scattering is involved. By treating the molecules as independent oscillators rather than the more typically considered single collective dipole, we find the full multi-band dispersion relation. This approach offers a natural way to include the dark states in the dispersion. We demonstrate that for a molecular resonance tuned near the crossing point of forward and backward grating-scattered plasmon modes, the interaction between plasmons and molecules gives a five-band dispersion relation, including a bright state not captured in calculations using a single collective dipole. We also show that the role of the grating in breaking the translational invariance of the system appears in the position-dependent coupling between the molecules and the surface plasmon. The presence of the grating is thus not only important for the experimental observation of molecule-surface-plasmon coupling, but also provides an additional design parameter that tunes the system.
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Affiliation(s)
- Marie S. Rider
- Department of Physics and Astronomy, University of Exeter, Stocker Road, Devon, EX4 4QL, UK
| | - Rakesh Arul
- NanoPhotonics Centre, Department of Physics, University of Cambridge, Cambridge, CB3 0HE, UK
| | - Jeremy J. Baumberg
- NanoPhotonics Centre, Department of Physics, University of Cambridge, Cambridge, CB3 0HE, UK
| | - William L. Barnes
- Department of Physics and Astronomy, University of Exeter, Stocker Road, Devon, EX4 4QL, UK
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21
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Hu H, Lin X, Liu D, Chen H, Zhang B, Luo Y. Broadband Enhancement of Cherenkov Radiation Using Dispersionless Plasmons. Adv Sci (Weinh) 2022; 9:e2200538. [PMID: 35863914 PMCID: PMC9475543 DOI: 10.1002/advs.202200538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 06/27/2022] [Indexed: 06/15/2023]
Abstract
As one of leading technologies in detecting relativistic particles, Cherenkov radiation plays an essential role in modern high-energy and particle physics. However, the limited photon yield in transparent dielectrics makes efficient Cherenkov radiation only possible with high-energy particles (at least several MeV). This restriction hinders applications of Cherenkov radiation in free-electron light source, bio-imaging, medical therapy, etc. Broadband enhancement of Cherenkov radiation is highly desired for all these applications, but still widely acknowledged as a scientific challenge. To this end, a general approach is reported to enhance the photon yield of Cherenkov radiation using dispersionless plasmons. Broadband dispersionless plasmons can be realized by exploiting either the acoustic nature of terahertz plasmons in a graphene-based heterostructure or the nonlocal property of optical plasmons in a metallodielectric structure. When coupled to moving electrons, such dispersionless plasmons give rise to a radiation enhancement rate more than two orders of magnitude (as compared with conventional Cherenkov radiation) over an ultrabroad frequency band. Moreover, since the phase velocity of dispersionless plasmons can be made as small as the Fermi velocity, giant radiation enhancements can be readily induced by ultralow-energy free electrons (e.g., with a kinetic energy down to 3 eV), without resorting to relativistic particles.
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Affiliation(s)
- Hao Hu
- School of Electrical and Electronic EngineeringNanyang Technological University50 Nanyang AvenueSingapore639798Singapore
| | - Xiao Lin
- Interdisciplinary Center for Quantum InformationState Key Laboratory of Modern Optical InstrumentationZJU‐Hangzhou Global Science and Technology Innovation CenterCollege of Information Science and Electronic EngineeringZhejiang UniversityHangzhou310027P. R. China
- International Joint Innovation CenterZJU‐UIUC InstituteZhejiang UniversityHaining314400P. R. China
| | - Dongjue Liu
- School of Electrical and Electronic EngineeringNanyang Technological University50 Nanyang AvenueSingapore639798Singapore
| | - Hongsheng Chen
- Interdisciplinary Center for Quantum InformationState Key Laboratory of Modern Optical InstrumentationZJU‐Hangzhou Global Science and Technology Innovation CenterCollege of Information Science and Electronic EngineeringZhejiang UniversityHangzhou310027P. R. China
- International Joint Innovation CenterZJU‐UIUC InstituteZhejiang UniversityHaining314400P. R. China
| | - Baile Zhang
- Division of Physics and Applied PhysicsSchool of Physical and Mathematical SciencesNanyang Technological University21 Nanyang LinkSingapore637371Singapore
- Centre for Disruptive Photonic TechnologiesNanyang Technological UniversitySingapore637371Singapore
| | - Yu Luo
- School of Electrical and Electronic EngineeringNanyang Technological University50 Nanyang AvenueSingapore639798Singapore
- UMI 3288 CINTRACNRS/NTU/THALESNanyang Technological University50 Nanyang DriveSingapore637553Singapore
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22
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Li Y, Wang D, Liang Z, Zeng L, Li W, Xie P, Ding Q, Zhang H, Schaaf P, Wang W. Evaluating the Optical Response of Heavily Decorated Black Silicon Based on a Realistic 3D Modeling Methodology. ACS Appl Mater Interfaces 2022; 14:36189-36199. [PMID: 35767685 DOI: 10.1021/acsami.2c05652] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Combining black silicon (BS), a nanostructured silicon containing highly roughened surface morphology with plasmonic materials, is becoming an attractive approach for greatly enhancing light-matter interactions with promising applications of sensing and light harvesting. However, precisely describing the optical response of a heavily decorated BS structure is still challenging due to the increasing complexity in surface morphology and plasmon hybridization. Here, we propose and fully characterize BS-based multistacked nanostructures with randomly distributed nanoparticles on the highly roughened nonflat surface. We demonstrate a realistic 3D modeling methodology based on parametrized scanning electron microscopy images that provides high-precision morphology details, successfully linking the theoretical analysis with experimental optical response of the complex nanostructures. Far-field calculations very nicely reproduce experimental reflectance spectra, revealing the dependency of light trapping on the thickness of the conformal reflector and the atop nanoparticle size. Near-field analysis clearly identifies three types of stochastic "hotspots". Their contribution to the overall field enhancement is shown to be very much sensitive to the nanoscale surface morphology. The simulated near-field property is then used to examine the measured surface-enhanced Raman scattering (SERS) response on the multistacked structures. The present modeling approach combined with spectroscopic characterizations is expected to offer a powerful tool for the precise description of the optical response of other large-scale highly disordered realistic 3D systems.
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Affiliation(s)
- Yuhang Li
- College of Physics, Sichuan University, Chengdu 610064, China
| | - Dong Wang
- Institute for Micro and Nanotechnologies MacroNano(R) and Institute for Materials Science and Engineering, Chair of Materials for Electrical Engineering and Electronics, Technische Universität Ilmenau, 98693 Ilmenau, Germany
| | - Zhengchen Liang
- College of Physics, Sichuan University, Chengdu 610064, China
- Department of Physics, Tsinghua University, Beijing 100084, P. R. China
| | - Lingxiao Zeng
- College of Physics, Sichuan University, Chengdu 610064, China
| | - Wenxue Li
- College of Physics, Sichuan University, Chengdu 610064, China
| | - Peng Xie
- College of Physics, Sichuan University, Chengdu 610064, China
| | - Qi Ding
- College of Physics, Sichuan University, Chengdu 610064, China
| | - Hong Zhang
- College of Physics, Sichuan University, Chengdu 610064, China
- Key Laboratory of High Energy Density Physics and Technology of Ministry of Education, Sichuan University, Chengdu 610065, China
| | - Peter Schaaf
- Institute for Micro and Nanotechnologies MacroNano(R) and Institute for Materials Science and Engineering, Chair of Materials for Electrical Engineering and Electronics, Technische Universität Ilmenau, 98693 Ilmenau, Germany
| | - Wei Wang
- College of Physics, Sichuan University, Chengdu 610064, China
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23
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Liu Z, El-Demellawi JK, Bakr OM, Ooi BS, Alshareef HN. Plasmonic Nb 2C Tx MXene-MAPbI 3 Heterostructure for Self-Powered Visible-NIR Photodiodes. ACS Nano 2022; 16:7904-7914. [PMID: 35491863 DOI: 10.1021/acsnano.2c00558] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The ability of MXenes to efficiently absorb light is greatly enriched by the surface plasmons oscillating at their two-dimensional (2D) surfaces. Thus far, MXenes have shown impressive plasmonic absorptions spanning the visible and infrared (IR) regimes. However, their potential use in IR optoelectronic applications, including photodiodes, has been marginally investigated. Besides, their relatively low resistivity has limited their use as photosensing materials due to their intrinsic high dark current. Herein, heterostructures made of methylammonium lead triiodide (MAPbI3) perovskite and niobium carbide (Nb2CTx) MXene are prepared with a matching band structure and exploited for self-powered visible-near IR (NIR) photodiodes. Using MAPbI3 has expanded the operation range of the MAPbI3/Nb2CTx photodiode to the visible regime while suppressing the relatively large dark current of the NIR-absorbing Nb2CTx. In consequence, the fabricated MAPbI3/Nb2CTx photodiode has responded linearly to white light illumination with a responsivity of 0.25 A/W and a temporal photoresponse of <4.5 μs. Furthermore, when illuminated by NIR laser (1064 nm), our photodiode demonstrates a higher on/off ratio (∼103) and faster response times (<30 ms) compared to that of planar Nb2CTx-only detectors (<2 and 20 s, respectively). The performed space-charge-limited current (SCLC) and capacitance measurements reveal that such an efficient and enhanced charge transfer depends on the coordinate bonding between the surface groups of the MXene and the undercoordinated Pb2+ ions of the MAPbI3 at the passivated MAPbI3/Nb2CTx interface.
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Affiliation(s)
- Zhixiong Liu
- Materials Science and Engineering, Physical Science and Engineering (PSE) Division, King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Jehad K El-Demellawi
- Materials Science and Engineering, Physical Science and Engineering (PSE) Division, King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Osman M Bakr
- Materials Science and Engineering, Physical Science and Engineering (PSE) Division, King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Boon S Ooi
- Photonics Laboratory, Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division, King Abdullah University of Science and Technology (KAUST), Thuwal 21534, Saudi Arabia
| | - Husam N Alshareef
- Materials Science and Engineering, Physical Science and Engineering (PSE) Division, King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
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24
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Huang HJ, Chang HW, Lee CY, Shiao MH, Chiu YL, Lee PY, Lin YS. Effect of synthesis time on plasmonic properties of Ag dendritic nanoforests. IUCrJ 2022; 9:355-363. [PMID: 35546804 PMCID: PMC9067114 DOI: 10.1107/s2052252522002901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Accepted: 03/15/2022] [Indexed: 06/15/2023]
Abstract
The effects of synthesis time on the plasmonic properties of Ag dendritic nanoforests on Si substrate (Ag-DNF/Si) samples synthesized through the fluoride-assisted galvanic replacement reaction were investigated. The Ag-DNF/Si samples were characterized using scanning electron microscopy, energy-dispersive X-ray spectroscopy, reflection spectroscopy, X-ray diffraction and surface-enhanced Raman spectroscopy (SERS). The prolonged reaction time led to the growth of an Ag-DNF layer and etched Si hole array. SEM images and variations in the fractal dimension index indicated that complex-structure, feather-like leaves became coral-like branches between 30 and 60 min of synthesis. The morphological variation during the growth of the Ag DNFs resulted in different optical responses to light illumination, especially those of light harvest and energy transformation. The sample achieved the most desirable light-to-heat conversion efficiency and SERS response with a 30 min growth time. A longer synthesis time or thicker Ag-DNF layer on the Si substrate did not have superior plasmonic properties.
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Affiliation(s)
- Hung Ji Huang
- Department of Electra-Optical Engineering, National Formosa University, Yunlin 632301, Taiwan
| | - Han-Wei Chang
- Department of Chemical Engineering, National United University, Miaoli 360302, Taiwan
| | - Chia-Yen Lee
- Department of Electrical Engineering, National United University, Miaoli 360302, Taiwan
| | - Ming-Hua Shiao
- Taiwan Instrument Research Institute, National Applied Research Laboratories, Hsinchu 300092, Taiwan
| | - Yen-Ling Chiu
- Department of Chemical Engineering, National United University, Miaoli 360302, Taiwan
| | - Pee-Yew Lee
- Department of Optoelectronics and Materials Technology, National Taiwan Ocean University, Keelung 202301, Taiwan
| | - Yung-Sheng Lin
- Department of Chemical Engineering, National United University, Miaoli 360302, Taiwan
- PhD Program in Materials and Chemical Engineering, National United University, Miaoli 360302, Taiwan
- Institute of Food Safety and Health Risk Assessment, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan
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25
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Yang H, Konečná A, Xu X, Cheong SW, Garfunkel E, García de Abajo FJ, Batson PE. Low-Loss Tunable Infrared Plasmons in the High-Mobility Perovskite (Ba,La)SnO 3. Small 2022; 18:e2106897. [PMID: 35279954 DOI: 10.1002/smll.202106897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 02/06/2022] [Indexed: 06/14/2023]
Abstract
BaSnO3 exhibits the highest carrier mobility among perovskite oxides, making it ideal for oxide electronics. Collective charge carrier oscillations known as plasmons are expected to arise in this material, thus providing a tool to control the nanoscale optical field for optoelectronics applications. Here, the existence of relatively long-lived plasmons supported by high-mobility charge carriers in La-doped BaSnO3 (BLSO) is demonstrated. By exploiting the high spatial and energy resolution of electron energy-loss spectroscopy with a focused beam in a scanning transmission electron microscope, the dispersion, confinement ratio, and damping of infrared localized surface plasmons (LSPs) in BLSO nanoparticles are systematically investigated. It is found that LSPs in BLSO exhibit a high degree of spatial confinement compared to those sustained by noble metals and have relatively low losses and high quality factors with respect to other doped oxides. Further analysis clarifies the relation between plasmon damping and carrier mobility in BLSO. The results support the use of nanostructured degenerate semiconductors for plasmonic applications in the infrared region and establish a solid alternative to more traditional plasmonic materials.
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Affiliation(s)
- Hongbin Yang
- Department of Chemistry and Chemical Biology, Rutgers University, Piscataway, NJ, USA
| | - Andrea Konečná
- ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, Castelldefels, Barcelona, 08860, Spain
- Central European Institute of Technology, Brno University of Technology, Brno, 61200, Czech Republic
| | - Xianghan Xu
- Department of Physics and Astronomy, Rutgers University, Piscataway, NJ, USA
- Rutgers Center for Emergent Materials, Rutgers University, Piscataway, NJ, USA
| | - Sang-Wook Cheong
- Department of Physics and Astronomy, Rutgers University, Piscataway, NJ, USA
- Rutgers Center for Emergent Materials, Rutgers University, Piscataway, NJ, USA
| | - Eric Garfunkel
- Department of Chemistry and Chemical Biology, Rutgers University, Piscataway, NJ, USA
- Department of Physics and Astronomy, Rutgers University, Piscataway, NJ, USA
| | - F Javier García de Abajo
- ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, Castelldefels, Barcelona, 08860, Spain
- ICREA-Institució Catalana de Recerca i Estudis Avançats, Passeig Lluís Companys 23, Barcelona, 08010, Spain
| | - Philip E Batson
- Department of Physics and Astronomy, Rutgers University, Piscataway, NJ, USA
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26
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Zhao L, Liu C, Wang K. Progress of GaN-Based Optoelectronic Devices Integrated with Optical Resonances. Small 2022; 18:e2106757. [PMID: 35218296 DOI: 10.1002/smll.202106757] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 01/16/2022] [Indexed: 06/14/2023]
Abstract
Being direct wide bandgap, III-nitride (III-N) semiconductors have many applications in optoelectronics, including light-emitting diodes, lasers, detectors, photocatalysis, etc. Incorporation of III-N semiconductors with high-efficiency optical resonances including surface plasmons, distributed Bragg reflectors and micro cavities, has attracted considerable interests for upgrading their performance, which can not only reveal the new coupling mechanisms between optical resonances and quasiparticles, but also unveil the shield of novel optoelectronic devices with superior performances. In this review, the content covers the recent progress of GaN-based optoelectronic devices integrated with plasmonics and/or micro resonators, including the LEDs, photodetectors, solar cells, and light photocatalysis. The authors aim to provide an inspiring insight of recent remarkable progress and breakthroughs, as well as a promising prospect for the future highly-integrated, high speed, and efficient GaN-based optoelectronic devices.
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Affiliation(s)
- Lixia Zhao
- School of Electrical Engineering, Tiangong University, 399 Binshuixi Road, Tianjin, 300387, P. R. China
- State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, A35 Qinghua East Road, Beijing, 100083, P. R. China
| | - Chang Liu
- State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, A35 Qinghua East Road, Beijing, 100083, P. R. China
| | - Kaiyou Wang
- State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, A35 Qinghua East Road, Beijing, 100083, P. R. China
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27
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Aldosari FMM. Characterization of Labeled Gold Nanoparticles for Surface-Enhanced Raman Scattering. Molecules 2022; 27:molecules27030892. [PMID: 35164155 PMCID: PMC8838896 DOI: 10.3390/molecules27030892] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 01/14/2022] [Accepted: 01/24/2022] [Indexed: 11/30/2022]
Abstract
Noble metal nanoparticles (NP) such as gold (AuNPs) and silver nanoparticles (AgNPs) can produce ultrasensitive surface-enhanced Raman scattering (SERS) signals owing to their plasmonic properties. AuNPs have been widely investigated for their biocompatibility and potential to be used in clinical diagnostics and therapeutics or combined for theranostics. In this work, labeled AuNPs in suspension were characterized in terms of size dependency of their localized surface plasmon resonance (LSPR), dynamic light scattering (DLS), and SERS activity. The study was conducted using a set of four Raman labels or reporters, i.e., small molecules with large scattering cross-section and a thiol moiety for chemisorption on the AuNP, namely 4-mercaptobenzoic acid (4-MBA), 2-naphthalenethiol (2-NT), 4-acetamidothiophenol (4-AATP), and biphenyl-4-thiol (BPT), to investigate their viability for SERS tagging of spherical AuNPs of different size in the range 5 nm to 100 nm. The results showed that, when using 785 nm laser excitation, the SERS signal increases with the increasing size of AuNP up to 60 or 80 nm. The signal is highest for BPT labelled 80 nm AuNPs followed by 4-AATP labeled 60 nm AuNPs, making BPT and 4-AATP the preferred candidates for Raman labelling of spherical gold within the range of 5 nm to 100 nm in diameter.
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Affiliation(s)
- Fahad M M Aldosari
- School of Physics and Astronomy, University of Exeter, Exeter EX4 4QL, UK
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28
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Maragkaki S, Lingos PC, Tsibidis GD, Deligeorgis G, Stratakis E. Impact of Pre-Patterned Structures on Features of Laser-Induced Periodic Surface Structures. Molecules 2021; 26:7330. [PMID: 34885913 PMCID: PMC8658884 DOI: 10.3390/molecules26237330] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 11/26/2021] [Accepted: 11/29/2021] [Indexed: 11/16/2022] Open
Abstract
The efficiency of light coupling to surface plasmon polariton (SPP) represents a very important issue in plasmonics and laser fabrication of topographies in various solids. To illustrate the role of pre-patterned surfaces and impact of laser polarisation in the excitation of electromagnetic modes and periodic pattern formation, Nickel surfaces are irradiated with femtosecond laser pulses of polarisation perpendicular or parallel to the orientation of the pre-pattern ridges. Experimental results indicate that for polarisation parallel to the ridges, laser induced periodic surface structures (LIPSS) are formed perpendicularly to the pre-pattern with a frequency that is independent of the distance between the ridges and periodicities close to the wavelength of the excited SPP. By contrast, for polarisation perpendicular to the pre-pattern, the periodicities of the LIPSS are closely correlated to the distance between the ridges for pre-pattern distance larger than the laser wavelength. The experimental observations are interpreted through a multi-scale physical model in which the impact of the interference of the electromagnetic modes is revealed.
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Affiliation(s)
- Stella Maragkaki
- Institute of Electronic Structure and Laser, Foundation for Research and Technology—Hellas, 71110 Heraklion, Crete, Greece; (P.C.L.); (G.D.T.); (G.D.)
| | - Panagiotis C. Lingos
- Institute of Electronic Structure and Laser, Foundation for Research and Technology—Hellas, 71110 Heraklion, Crete, Greece; (P.C.L.); (G.D.T.); (G.D.)
| | - George D. Tsibidis
- Institute of Electronic Structure and Laser, Foundation for Research and Technology—Hellas, 71110 Heraklion, Crete, Greece; (P.C.L.); (G.D.T.); (G.D.)
- Department of Physics, University of Crete, 71003 Heraklion, Crete, Greece
| | - George Deligeorgis
- Institute of Electronic Structure and Laser, Foundation for Research and Technology—Hellas, 71110 Heraklion, Crete, Greece; (P.C.L.); (G.D.T.); (G.D.)
- Department of Physics, University of Crete, 71003 Heraklion, Crete, Greece
| | - Emmanuel Stratakis
- Institute of Electronic Structure and Laser, Foundation for Research and Technology—Hellas, 71110 Heraklion, Crete, Greece; (P.C.L.); (G.D.T.); (G.D.)
- Department of Physics, University of Crete, 71003 Heraklion, Crete, Greece
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29
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Liu K, Lu F, Xu Y, Ma C. Investigation of optical absorption enhancement of plasmonic configuration by graphene on LiNbO 3-SiO 2structure. Nanotechnology 2021; 33:045701. [PMID: 34649234 DOI: 10.1088/1361-6528/ac2fe6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Accepted: 10/14/2021] [Indexed: 06/13/2023]
Abstract
A novel plasmonic structure is demonstrated by combining graphene with a planar LiNbO3thin layer, which is simple and easy to fabricate compared to the complex design of general graphene surface plasmons devices. Graphene from the chemical vapor deposition is investigated and characterized to be a continuous and uniform monolayer or fewlayer. LiNbO3capped by graphene layer show an extraordinary absorption enhancement in an attenuated total reflection (ATR) measurement at a wide bandwidth of 500-4000 cm-1, which can be explained by resonance absorption resulting from the coupling of graphene surface plasmons with optical modes of LiNbO3-SiO2Fabry-Perot cavity and LiNbO3planar waveguide. The simulation results are generally consistent with the ATR experimental results. The absorption spectra versus temperature of this plasmonic configuration is also investigated, which show that increasing the testing temperature not only highlights the atomic vibrational peaks of graphene, but also enhances the absorption at several characteristic absorption frequencies due to the enhanced coupling between the surface plamons excitations and the optical modes.
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Affiliation(s)
- Kaijing Liu
- School of Information Science and Engineering, Shandong University, Qingdao 266200, People's Republic of China
| | - Fei Lu
- School of Information Science and Engineering, Shandong University, Qingdao 266200, People's Republic of China
| | - Yuhang Xu
- School of Information Science and Engineering, Shandong University, Qingdao 266200, People's Republic of China
| | - Changdong Ma
- Department of Radiation Oncology, Qilu Hospital of Shandong University, Jinan 250100, People's Republic of China
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30
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Pan XH, Chen M, Cao SH, Xu ZQ, Li Z, Li YQ. Plasmon Coupling Enhanced Micro-Spectroscopy and Imaging for Sensitive Discrimination of Membrane Domains of a Single Cell. Chemistry 2021; 27:17331-17335. [PMID: 34609776 DOI: 10.1002/chem.202103018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Indexed: 11/08/2022]
Abstract
Different cell membrane domains play different roles in many cell processes, and the discrimination of these domains is of considerable importance for the elucidation of cellular functions. However, the strategies available for distinguishing these cell membrane domains are limited. A novel technique called plasmon coupling enhanced micro-spectroscopy and imaging to discriminate basal and lateral membrane domains of a single cell combines the application of an additional plasmonic silver film for surface plasmon (SP) excitation to selectively excite and enhance the basal membranes in the near-field with directional enhanced microscopic imaging and spectroscopy. The SP and critical evanescent fields are induced upon excitation through a silver-coated semitransparent coverslip at the surface plasmon resonance and critical angles, respectively. The basal and lateral membrane domains located within the SP and critical evanescent fields can be selectively excited and distinguished by adjusting the incident angle of laser irradiation. Moreover, the brighter images and more intense spectra of membrane-targeting fluorescence-Raman probes under directional excitation than in conventional EPI mode allow clear identification of the membrane domains.
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Affiliation(s)
- Xiao-Hui Pan
- Department of Chemistry and, the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, 422 Siming South Road, Siming District, Xiamen, 361005, P. R. China
| | - Min Chen
- Department of Chemistry and, the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, 422 Siming South Road, Siming District, Xiamen, 361005, P. R. China
| | - Shuo-Hui Cao
- Department of Chemistry and, the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, 422 Siming South Road, Siming District, Xiamen, 361005, P. R. China
| | - Zi-Qian Xu
- Department of Chemistry and, the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, 422 Siming South Road, Siming District, Xiamen, 361005, P. R. China
| | - Zhao Li
- Department of Chemistry and, the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, 422 Siming South Road, Siming District, Xiamen, 361005, P. R. China
| | - Yao-Qun Li
- Department of Chemistry and, the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, 422 Siming South Road, Siming District, Xiamen, 361005, P. R. China
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31
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Zheng P, Raj P, Mizutani T, Szabo M, Hanson WA, Barman I. Plexcitonic Quasi-Bound States in the Continuum. Small 2021; 17:e2102596. [PMID: 34411423 PMCID: PMC8487958 DOI: 10.1002/smll.202102596] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Revised: 06/21/2021] [Indexed: 05/18/2023]
Abstract
Enhancing light-matter interactions is fundamental to the advancement of nanophotonics and optoelectronics. Yet, light diffraction on dielectric platforms and energy loss on plasmonic metallic systems present an undesirable trade-off between coherent energy exchange and incoherent energy damping. Through judicious structural design, both light confinement and energy loss issues could be potentially and simultaneously addressed by creating bound states in the continuum (BICs) where light is ideally decoupled from the radiative continuum. Herein, the authors present a general framework based on the two-coupled resonances to first conceptualize and then numerically demonstrate a type of quasi-BICs that can be achieved through the interference between two bare resonance modes and is characterized by the considerably narrowed spectral line shape even on lossy metallic nanostructures. The ubiquity of the proposed framework further allows the paradigm to be extended for the realization of plexcitonic quasi-BICs on the same metallic systems. Owing to the topological nature, both plasmonic and plexcitonic quasi-BICs display strong mode robustness against parameters variation, thereby providing an attractive platform to unlock the potential of the coupled plasmon-exciton systems for manipulation of the photophysical properties of condensed phases.
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Affiliation(s)
- Peng Zheng
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD 21218, United States
- To whom the correspondence should be addressed. ;
| | - Piyush Raj
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD 21218, United States
| | - Takayuki Mizutani
- Beckman Coulter Diagnostics – Immunoassay Business Unit, 1000 Lake Hazeltine Dr, Chaska, MN 55318
| | - Miklos Szabo
- Beckman Coulter Diagnostics – Immunoassay Business Unit, 1000 Lake Hazeltine Dr, Chaska, MN 55318
| | - William A. Hanson
- Beckman Coulter Diagnostics – Immunoassay Business Unit, 1000 Lake Hazeltine Dr, Chaska, MN 55318
| | - Ishan Barman
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD 21218, United States
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD 21287, United States
- The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD 21287, United States
- To whom the correspondence should be addressed. ;
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32
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Portner K, Schmuck M, Lehmann P, Weilenmann C, Haffner C, Ma P, Leuthold J, Luisier M, Emboras A. Analog Nanoscale Electro-Optical Synapses for Neuromorphic Computing Applications. ACS Nano 2021; 15:14776-14785. [PMID: 34459580 DOI: 10.1021/acsnano.1c04654] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
The typically nonlinear and asymmetric response of synaptic memristors to positive and negative electrical pulses makes the realization of accurate deep neural networks very challenging. Here, we integrate a two-terminal valence change memory (VCM) into a photonic/plasmonic circuit and show that the switching properties of this memristor become more gradual and symmetric under light irradiation. The added optical input acts on the VCM as a third, independent modulation channel. It locally heats the active area of the device, which enhances the generation of oxygen vacancies and broadens the resulting nanoscale conductive filaments. The measured conductance modulation of the VCM is then inserted into a neural network simulator. Using the MNIST data set of handwritten digits as an application, a light-enhanced recognition accuracy of 93.53% is demonstrated, similar to ideally performing memristors (94.86%) and much higher than those without light (67.37%). Notably, the optical signal does not increase the overall energy consumption by more than 3.2%. Finally, an approach to scale up our electro-optical technology is proposed, which could allow high-density, energy-efficient neuromorphic computing chips.
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Affiliation(s)
- Kevin Portner
- Integrated Systems Laboratory, ETH Zurich, 8092 Zurich, Switzerland
| | - Manuel Schmuck
- Integrated Systems Laboratory, ETH Zurich, 8092 Zurich, Switzerland
| | - Paul Lehmann
- Integrated Systems Laboratory, ETH Zurich, 8092 Zurich, Switzerland
| | | | - Christian Haffner
- Institute of Electromagnetic Fields (IEF), ETH Zurich, 8092 Zurich, Switzerland
- imec, B-3001 Leuven, Belgium
| | - Ping Ma
- Institute of Electromagnetic Fields (IEF), ETH Zurich, 8092 Zurich, Switzerland
| | - Juerg Leuthold
- Institute of Electromagnetic Fields (IEF), ETH Zurich, 8092 Zurich, Switzerland
| | - Mathieu Luisier
- Integrated Systems Laboratory, ETH Zurich, 8092 Zurich, Switzerland
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33
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Huang HJ, Shiao MH, Lin YW, Lin BJ, Su J, Lin YS, Chang HW. Au@Ag Dendritic Nanoforests for Surface-Enhanced Raman Scattering Sensing. Nanomaterials (Basel) 2021; 11:nano11071736. [PMID: 34209414 PMCID: PMC8307875 DOI: 10.3390/nano11071736] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 06/26/2021] [Accepted: 06/28/2021] [Indexed: 11/16/2022]
Abstract
The effects of Au cores in Ag shells in enhancing surface-enhanced Raman scattering (SERS) were evaluated with samples of various Au/Ag ratios. High-density Ag shell/Au core dendritic nanoforests (Au@Ag-DNFs) on silicon (Au@Ag-DNFs/Si) were synthesized using the fluoride-assisted Galvanic replacement reaction method. The synthesized Au@Ag-DNFs/Si samples were characterized using scanning electron microscopy, energy-dispersive X-ray spectroscopy, reflection spectroscopy, X-ray diffraction, and Raman spectroscopy. The ultraviolet-visible extinction spectrum exhibited increased extinction induced by the addition of Ag when creating the metal DNFs layer. The pure Ag DNFs exhibited high optical extinction of visible light, but low SERS response compared with Au@Ag DNFs. The Au core (with high refractive index real part) in Au@Ag DNFs maintained a long-leaf structure that focused the illumination light, resulting in the apparent SERS enhancement of the Ag coverage.
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Affiliation(s)
- Hung Ji Huang
- Taiwan Instrument Research Institute, National Applied Research Laboratories, Hsinchu 300092, Taiwan; (H.J.H.); (M.-H.S.); (J.S.)
| | - Ming-Hua Shiao
- Taiwan Instrument Research Institute, National Applied Research Laboratories, Hsinchu 300092, Taiwan; (H.J.H.); (M.-H.S.); (J.S.)
| | - Yang-Wei Lin
- Department of Chemistry, National Changhua University of Education, Changhua 500207, Taiwan;
| | - Bei-Ju Lin
- Department of Chemical Engineering, National United University, Miaoli 360001, Taiwan;
| | - James Su
- Taiwan Instrument Research Institute, National Applied Research Laboratories, Hsinchu 300092, Taiwan; (H.J.H.); (M.-H.S.); (J.S.)
| | - Yung-Sheng Lin
- Department of Chemical Engineering, National United University, Miaoli 360001, Taiwan;
- Ph.D. Program in Materials and Chemical Engineering, National United University, Miaoli 360001, Taiwan
- Institute of Food Safety and Health Risk Assessment, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan
- Correspondence: (Y.-S.L.); (H.-W.C.); Tel.: +886-37-382199 (Y.-S.L.); +886-37-382216 (H.-W.C.)
| | - Han-Wei Chang
- Department of Chemical Engineering, National United University, Miaoli 360001, Taiwan;
- Correspondence: (Y.-S.L.); (H.-W.C.); Tel.: +886-37-382199 (Y.-S.L.); +886-37-382216 (H.-W.C.)
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34
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Luo W, Kuzmenko AB, Qi J, Zhang N, Wu W, Ren M, Zhang X, Cai W, Xu J. Nanoinfrared Characterization of Bilayer Graphene Conductivity under Dual-Gate Tuning. Nano Lett 2021; 21:5151-5157. [PMID: 34060844 DOI: 10.1021/acs.nanolett.1c01167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Dual-gate tuning on two-dimensional (2D) heterostructures can provide independent control of the carrier concentration and interlayer electrostatic potential, yielding novel electronic and optical properties. In this paper, by utilizing monolayer graphene as both the top gate and a plasmon wavelength magnifier, the optical properties of bilayer graphene (BLG) under dual-gate are quantitatively investigated by nanoinfrared imaging. The hybrid optical modes in the vertically coupled two-layer system are imaged from scattering-type scanning near-field microscopy (s-SNOM). Moreover, plasmon dispersion behaviors under varied dual-gate tuning are explored and explained well with theoretical ones employing tight binding approximation, which reveals the flexibility in individually manipulating the Fermi energy and bandgap. Especially, electron-hole asymmetry in BLG is verified from experiments. Our studies pave route for quantitative near-field investigation of superlattice, topological boundaries, and other emergent phenomena in graphene-based 2D heterostructures.
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Affiliation(s)
- Weiwei Luo
- The Key Laboratory of Weak-Light Nonlinear Photonics, Ministry of Education, School of Physics, and TEDA Institute of Applied Physics, Nankai University, Tianjin 300457, People's Republic of China
| | - Alexey B Kuzmenko
- Department of Quantum Matter Physics, University of Geneva, Quai Ernest-Ansermet 24, 1211 Geneva, Switzerland
| | - Jialin Qi
- The Key Laboratory of Weak-Light Nonlinear Photonics, Ministry of Education, School of Physics, and TEDA Institute of Applied Physics, Nankai University, Tianjin 300457, People's Republic of China
| | - Ni Zhang
- The Key Laboratory of Weak-Light Nonlinear Photonics, Ministry of Education, School of Physics, and TEDA Institute of Applied Physics, Nankai University, Tianjin 300457, People's Republic of China
| | - Wei Wu
- The Key Laboratory of Weak-Light Nonlinear Photonics, Ministry of Education, School of Physics, and TEDA Institute of Applied Physics, Nankai University, Tianjin 300457, People's Republic of China
| | - Mengxin Ren
- The Key Laboratory of Weak-Light Nonlinear Photonics, Ministry of Education, School of Physics, and TEDA Institute of Applied Physics, Nankai University, Tianjin 300457, People's Republic of China
| | - Xinzheng Zhang
- The Key Laboratory of Weak-Light Nonlinear Photonics, Ministry of Education, School of Physics, and TEDA Institute of Applied Physics, Nankai University, Tianjin 300457, People's Republic of China
| | - Wei Cai
- The Key Laboratory of Weak-Light Nonlinear Photonics, Ministry of Education, School of Physics, and TEDA Institute of Applied Physics, Nankai University, Tianjin 300457, People's Republic of China
- Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi 030006, People's Republic of China
| | - Jingjun Xu
- The Key Laboratory of Weak-Light Nonlinear Photonics, Ministry of Education, School of Physics, and TEDA Institute of Applied Physics, Nankai University, Tianjin 300457, People's Republic of China
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35
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Karpiński K, Zielińska-Raczyńska S, Ziemkiewicz D. Aluminium-Based Plasmonic Sensors in Ultraviolet. Sensors (Basel) 2021; 21:4096. [PMID: 34198650 DOI: 10.3390/s21124096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 06/11/2021] [Accepted: 06/12/2021] [Indexed: 11/30/2022]
Abstract
We theoretically investigate the surface plasmon polaritons (SPPs) generated on an Al film covered by an Al2O3 layer in the context of their application as refractive index sensors. The calculated reflection spectra indicate SPP resonance excited by ultraviolet light, which was affected by the thickness of both the metal and the oxide layers on the surface. With optimized geometry, the system can work as a tunable sensor with a wide UV wavelength range λ∼ 150–300 nm. We report a quality factor of up to 10 and a figure of merit on the order of 9, and these are comparable to the performance of more complicated UV plasmonic nanostructures and allow for the detection of a 1% change of the refraction index. The sensor can operate on the basis of either the incidence angle or wavelength changes. The effect of oxide surface roughness is also investigated with an emphasis on amplitude-based refraction index sensing.
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Zhu W, Hutchison JA, Dong M, Li M. Frequency Shift Surface-Enhanced Raman Spectroscopy Sensing: An Ultrasensitive Multiplex Assay for Biomarkers in Human Health. ACS Sens 2021; 6:1704-1716. [PMID: 33939402 DOI: 10.1021/acssensors.1c00393] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The sensitive and selective detection of biomarkers for human health remains one of the grand challenges of the analytical sciences. Compared to established methods (colorimetric, (chemi) luminescent), surface-enhanced Raman spectroscopy (SERS) is an emerging alternative with enormous potential for ultrasensitive biological detection. Indeed even attomolar (10-18 M) detection limits are possible for SERS due to an orders-of-magnitude boosting of Raman signals at the surface of metallic nanostructures by surface plasmons. However, challenges remain for SERS assays of large biomolecules, as the largest enhancements require the biomarker to enter a "hot spot" nanogap between metal nanostructures. The frequency-shift SERS method has gained popularity in recent years as an alternative assay that overcomes this drawback. It measures frequency shifts in intense SERS peaks of a Raman reporter during binding events on biomolecules (protein coupling, DNA hybridization, etc.) driven by mechanical transduction, charge transfer, or local electric field effects. As such, it retains the excellent multiplexing capability of SERS, with multiple analytes being identifiable by a spectral fingerprint in a single read-out. Meanwhile, like refractive index surface plasmon resonance methods, frequency-shift SERS measures the shift of an intense signal rather than resolving a peak above noise, easing spectroscopic resolution requirements. SERS frequency-shift assays have proved particularly suitable for sensing large, highly charged biomolecules that alter hydrogen-bonding networks upon specific binding. Herein we discuss the frequency-shift SERS method and promising applications in (multiplex) biomarker sensing as well as extensions to ion and gas sensing and much more.
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Affiliation(s)
- Wenfeng Zhu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, the Chinese Academy of Sciences, Beijing 100049, China
- Department of Biochemistry and Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, China
| | - James Andell Hutchison
- School of Chemistry, University of Melbourne, 30 Flemington Road, Parkville 3052, Victoria, Australia
| | - Mingdong Dong
- Interdisciplinary Nanoscience Center, Aarhus University, Aarhus C 8000, Denmark
| | - Min Li
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, the Chinese Academy of Sciences, Beijing 100049, China
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Wang M, Huang Z, Salut R, Suarez MA, Lu H, Martin N, Grosjean T. Plasmonic Helical Nanoantenna As a Converter between Longitudinal Fields and Circularly Polarized Waves. Nano Lett 2021; 21:3410-3417. [PMID: 33830778 DOI: 10.1021/acs.nanolett.0c04948] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
A wide variety of optical applications and techniques require control of light polarization. So far, the manipulation of light polarization relies on components capable of interchanging two polarization states of the transverse field of a propagating wave (e.g., linear to circular polarizations, and vice versa). Here, we demonstrate that an individual helical nanoantenna is capable of locally converting longitudinally oriented confined near-fields into a circularly polarized freely propagating wave, and vice versa. To this end, the nanoantenna is coupled to cylindrical surface plasmons bound to the top interface of a thin gold layer. Helices of constant and varying pitch lengths are experimentally investigated. The reciprocal conversion of an incoming circularly wave into diverging cylindrical surface plasmons is demonstrated as well. Interconnecting circularly polarized optical waves (carrying spin angular momentum) and longitudinal near-fields provides a new degree of freedom in light polarization control.
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Affiliation(s)
- Mengjia Wang
- CNRS, FEMTO-ST Institute UMR 6174, Université Bourgogne Franche-Comté, Besançon 25000, France
| | - Zhijin Huang
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Department of Optoelectronic Engineering, Jinan University, Guangzhou 510632, China
| | - Roland Salut
- CNRS, FEMTO-ST Institute UMR 6174, Université Bourgogne Franche-Comté, Besançon 25000, France
| | - Miguel Angel Suarez
- CNRS, FEMTO-ST Institute UMR 6174, Université Bourgogne Franche-Comté, Besançon 25000, France
| | - Huihui Lu
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Department of Optoelectronic Engineering, Jinan University, Guangzhou 510632, China
| | - Nicolas Martin
- CNRS, FEMTO-ST Institute UMR 6174, Université Bourgogne Franche-Comté, Besançon 25000, France
| | - Thierry Grosjean
- CNRS, FEMTO-ST Institute UMR 6174, Université Bourgogne Franche-Comté, Besançon 25000, France
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Ren X, Zeng X, Liu C, Cheng C, Zhang R, Zhang Y, Zhan Z, Kong Q, Sun R, Cheng C. Optical Spin Hall Effect in Closed Elliptical Plasmonic Nanoslit with Noncircular Symmetry. Nanomaterials (Basel) 2021; 11:nano11040851. [PMID: 33810485 PMCID: PMC8066872 DOI: 10.3390/nano11040851] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 03/21/2021] [Accepted: 03/22/2021] [Indexed: 01/13/2023]
Abstract
We investigated the optical spin Hall effect (OSHE) of the light field from a closed elliptical metallic curvilinear nanoslit instead of the usual truncated curvilinear nanoslit. By making use of the characteristic bright spots in the light field formed by the noncircular symmetry of the elliptical slit and by introducing a method to separate the incident spin component (ISC) and converted spin component (CSC) of the output field, the OSHE manifested in the spot shifts in the CSC was more clearly observable and easily measurable. The slope of the elliptical slit, which was inverse along the principal axes, provided a geometric phase gradient to yield the opposite shifts of the characteristic spots in centrosymmetry, with a double shift achieved between the spots. Regarding the mechanism of this phenomenon, the flip of the spin angular momentum (SAM) of CSC gave rise to an extrinsic orbital angular momentum corresponding to the shifts of the wavelet profiles of slit elements in the same rotational direction to satisfy the conservation law. The analytical calculation and simulation of finite-difference time domain were performed for both the slit element and the whole slit ellipse, and the evolutions of the spot shifts as well as the underlying OSHE with the parameters of the ellipse were achieved. Experimental demonstrations were conducted and had consistent results. This study could be of great significance for subjects related to the applications of the OSHE.
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Affiliation(s)
- Xiaorong Ren
- College of Physics and Electronics, Shandong Normal University, Jinan 250014, China; (X.R.); (X.Z.); (C.L.); (R.Z.); (Y.Z.); (Z.Z.); (Q.K.); (R.S.)
- School of Electronic and Information Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Xiangyu Zeng
- College of Physics and Electronics, Shandong Normal University, Jinan 250014, China; (X.R.); (X.Z.); (C.L.); (R.Z.); (Y.Z.); (Z.Z.); (Q.K.); (R.S.)
| | - Chunxiang Liu
- College of Physics and Electronics, Shandong Normal University, Jinan 250014, China; (X.R.); (X.Z.); (C.L.); (R.Z.); (Y.Z.); (Z.Z.); (Q.K.); (R.S.)
| | - Chuanfu Cheng
- College of Physics and Electronics, Shandong Normal University, Jinan 250014, China; (X.R.); (X.Z.); (C.L.); (R.Z.); (Y.Z.); (Z.Z.); (Q.K.); (R.S.)
- Correspondence: (C.C.); (C.C.)
| | - Ruirui Zhang
- College of Physics and Electronics, Shandong Normal University, Jinan 250014, China; (X.R.); (X.Z.); (C.L.); (R.Z.); (Y.Z.); (Z.Z.); (Q.K.); (R.S.)
| | - Yuqin Zhang
- College of Physics and Electronics, Shandong Normal University, Jinan 250014, China; (X.R.); (X.Z.); (C.L.); (R.Z.); (Y.Z.); (Z.Z.); (Q.K.); (R.S.)
| | - Zijun Zhan
- College of Physics and Electronics, Shandong Normal University, Jinan 250014, China; (X.R.); (X.Z.); (C.L.); (R.Z.); (Y.Z.); (Z.Z.); (Q.K.); (R.S.)
| | - Qian Kong
- College of Physics and Electronics, Shandong Normal University, Jinan 250014, China; (X.R.); (X.Z.); (C.L.); (R.Z.); (Y.Z.); (Z.Z.); (Q.K.); (R.S.)
| | - Rui Sun
- College of Physics and Electronics, Shandong Normal University, Jinan 250014, China; (X.R.); (X.Z.); (C.L.); (R.Z.); (Y.Z.); (Z.Z.); (Q.K.); (R.S.)
| | - Chen Cheng
- College of Physics and Electronics, Shandong Normal University, Jinan 250014, China; (X.R.); (X.Z.); (C.L.); (R.Z.); (Y.Z.); (Z.Z.); (Q.K.); (R.S.)
- Correspondence: (C.C.); (C.C.)
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Huang S, Lin CW, Qi J, Iyer AM, He Y, Li Y, Bardhan NM, Irvine DJ, Hammond PT, Belcher AM. Surface Plasmon-Enhanced Short-Wave Infrared Fluorescence for Detecting Sub-Millimeter-Sized Tumors. Adv Mater 2021; 33:e2006057. [PMID: 33448062 DOI: 10.1002/adma.202006057] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 10/26/2020] [Indexed: 05/24/2023]
Abstract
Short-wave infrared (SWIR, 900-1700 nm) enables in vivo imaging with high spatiotemporal resolution and penetration depth due to the reduced tissue autofluorescence and decreased photon scattering at long wavelengths. Although small organic SWIR dye molecules have excellent biocompatibility, they have been rarely exploited as compared to their inorganic counterparts, mainly due to their low quantum yield. To increase their brightness, in this work, the SWIR dye molecules are placed in close proximity to gold nanorods (AuNRs) for surface plasmon-enhanced emission. The fluorescence enhancement is optimized by controlling the dye-to-AuNR number ratio and up to ≈45-fold enhancement factor is achieved. In addition, the results indicate that the highest dye-to-AuNR number ratio gives the highest emission intensity per weight and this is used for synthesizing SWIR imaging probes using layer-by-layer (LbL) technique with polymer coating protection. Then, the SWIR imaging probes are applied for in vivo imaging of ovarian cancer and the surface coating effect on intratumor distribution of the imaging probes is investigated in two orthotopic ovarian cancer models. Lastly, it is demonstrated that the plasmon-enhanced SWIR imaging probe has great potential for fluorescence imaging-guided surgery by showing its capability to detect sub-millimeter-sized tumors.
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Affiliation(s)
- Shengnan Huang
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, 02142, USA
| | - Ching-Wei Lin
- The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, 02142, USA
| | - Jifa Qi
- The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, 02142, USA
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Archana Mahadevan Iyer
- The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, 02142, USA
| | - Yanpu He
- The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, 02142, USA
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Yingzhong Li
- The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, 02142, USA
| | - Neelkanth M Bardhan
- The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, 02142, USA
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Darrell J Irvine
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, 02142, USA
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Paula T Hammond
- The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, 02142, USA
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Angela M Belcher
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, 02142, USA
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
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40
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Zheng P, Kang J, Paria D, Kang JU, Barman I. Molecular Radiative Energy Shifts under Strong Oscillating Fields. Small 2021; 17:e2007244. [PMID: 33354911 PMCID: PMC8099018 DOI: 10.1002/smll.202007244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Indexed: 06/12/2023]
Abstract
Coherent manipulation of light-matter interactions is pivotal to the advancement of nanophotonics. Conventionally, the non-resonant optical Stark effect is harnessed for band engineering by intense laser pumping. However, this method is hindered by the transient Stark shifts and the high-energy laser pumping which, by itself, is precluded as a nanoscale optical source due to light diffraction. As an analog of photons in a laser, surface plasmons are uniquely positioned to coherently interact with matter through near-field coupling, thereby, providing a potential source of electric fields. Herein, the first demonstration of plasmonic Stark effect is reported and attributed to a newly uncovered energy-bending mechanism. As a complementary approach to the optical Stark effect, it is envisioned that the plasmonic Stark effect will advance fundamental understanding of coherent light-matter interactions and will also provide new opportunities for advanced optoelectronic tools, such as ultrafast all-optical switches and biological nanoprobes at lower light power levels.
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Affiliation(s)
- Peng Zheng
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD 21218, United States
| | - Jeeun Kang
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins Medical Institutions, Baltimore, MD, 21231, United States
| | - Debadrita Paria
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD 21218, United States
| | - Jin U. Kang
- Department of Electrical and Computer Engineering, Whiting School of Engineering, Johns Hopkins University, Baltimore, MD, 21218, United States
| | - Ishan Barman
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD 21218, United States
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD 21287, United States
- The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD 21287, United States
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41
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Abstract
Light emission from tunnel junctions are a potential photon source for nanophotonic applications. Surprisingly, the photons emitted can have energies exceeding the energy supplied to the electrons by the bias. Three mechanisms for generating these so-called overbias photons have been proposed, but the relationship between these mechanisms has not been clarified. In this work, we argue that multielectron processes provide the best framework for understanding overbias light emission in tunnel junctions. Experimentally, we demonstrate for the first time that the superlinear dependence of emission on conductance predicted by this theory is robust to the temperature of the tunnel junction, indicating that tunnel junctions are a promising candidate for electrically driven broadband photon sources.
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Affiliation(s)
- E-Dean Fung
- Department of Applied Physics and Applied Mathematics, Columbia University, New York, New York 10027, United States
| | - Latha Venkataraman
- Department of Applied Physics and Applied Mathematics, Columbia University, New York, New York 10027, United States
- Department of Chemistry, Columbia University, New York, New York 10027, United States
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42
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Li T, Chen BQ, He Q, Bian LA, Shang XJ, Song GF. Polarization-Selective Bidirectional Absorption Based on a Bilayer Plasmonic Metasurface. Materials (Basel) 2020; 13:E5298. [PMID: 33238483 PMCID: PMC7700349 DOI: 10.3390/ma13225298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 11/15/2020] [Accepted: 11/20/2020] [Indexed: 11/16/2022]
Abstract
We propose an alignment-free and polarization-selective bidirectional absorber composed of a one-dimensional bilayer Au grating array buried in a silicon nitride spacer. The absorptivity of the designed structure is more than 95% (77%) under normal forward (backward) TM-polarized light incidence, and is more than 80% (70%) within a forward (backward) incident angle up to 30°. The great bidirectional absorption performance is illustrated by the resonance coupling of the surface plasmon polaritons (SPPs) resonance, the propagating surface plasmon (PSP) resonance and the localized surface plasmon (LSP) resonance under TM-polarized wave illumination. Moreover, the excitation of the Fano-like resonance mode of the proposed metasurface can produce two significantly different peaks in the absorption spectrum under the oblique TM-polarized incidence, which is beneficial for the plasmon-sensing application. Therefore, the proposed bidirectional metasurface absorber can be a candidate in the application of optical camouflage, thermal radiation, solar cells and optical sensing.
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Affiliation(s)
- Tong Li
- Hunan Provincial Key Laboratory of Flexible Electronic Materials Genome Engineering, Changsha University of Science and Technology, Changsha 410004, China; (T.L.); (B.-Q.C.); (Q.H.); (L.-A.B.)
| | - Bin-Quan Chen
- Hunan Provincial Key Laboratory of Flexible Electronic Materials Genome Engineering, Changsha University of Science and Technology, Changsha 410004, China; (T.L.); (B.-Q.C.); (Q.H.); (L.-A.B.)
| | - Qian He
- Hunan Provincial Key Laboratory of Flexible Electronic Materials Genome Engineering, Changsha University of Science and Technology, Changsha 410004, China; (T.L.); (B.-Q.C.); (Q.H.); (L.-A.B.)
| | - Li-An Bian
- Hunan Provincial Key Laboratory of Flexible Electronic Materials Genome Engineering, Changsha University of Science and Technology, Changsha 410004, China; (T.L.); (B.-Q.C.); (Q.H.); (L.-A.B.)
| | - Xiong-Jun Shang
- Hunan Provincial Key Laboratory of Flexible Electronic Materials Genome Engineering, Changsha University of Science and Technology, Changsha 410004, China; (T.L.); (B.-Q.C.); (Q.H.); (L.-A.B.)
| | - Guo-Feng Song
- Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China;
- College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
- Beijing Key Laboratory of Inorganic Stretchable and Flexible Information Technology, Beijing 100083, China
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43
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Pae JY, Medwal R, Nair RV, Chaurasiya A, Battiato M, Rawat RS, Matham MV. Electro-Ionic Control of Surface Plasmons in Graphene-Layered Heterostructures. Nano Lett 2020; 20:8305-8311. [PMID: 33079550 DOI: 10.1021/acs.nanolett.0c03471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Precise control of light is indispensable to modern optical communication devices especially as the size of such devices approaches the subwavelength scale. Plasmonic devices are suitable for the development of these optical devices due to the extreme field confinement and its ability to be controlled by tuning the carrier density at the metal/dielectric interface. Here, an electro-ionic controlled plasmonic device consisting of Au/graphene/ion-gel is demonstrated as an optical switch, where an external electric field modulates the real part of the electrical conductivity. The graphene layer enhances charge penetration and charge separation at the Au/graphene interface resulting in an increased photoinduced voltage. The ion-gel immobilized on the Au/graphene further enables the electrical tunability of plasmons which modulates the intensity of the reflected laser light. This work paves the way for developing novel plasmonic electro-optic switches for potential applications such as integrated optical devices.
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Affiliation(s)
- Jian Yi Pae
- Centre for Optical and Laser Engineering (COLE), School of Mechanical and Aerospace Engineering, Nanyang Technological University (NTU), 639798, Singapore
- Singapore Centre for 3D Printing (SC3DP), School of Mechanical and Aerospace Engineering, Nanyang Technological University (NTU), 639798 Singapore
| | - Rohit Medwal
- Natural Science and Science Education, National Institute of Education, Nanyang Technological University (NTU), 637616 Singapore
| | - Radhika V Nair
- Centre for Optical and Laser Engineering (COLE), School of Mechanical and Aerospace Engineering, Nanyang Technological University (NTU), 639798, Singapore
| | - Avinash Chaurasiya
- Natural Science and Science Education, National Institute of Education, Nanyang Technological University (NTU), 637616 Singapore
| | - Marco Battiato
- Physics and Applied Physics, School of Physical and Mathematical Science, Nanyang Technological University (NTU), 639798 Singapore
| | - Rajdeep Singh Rawat
- Natural Science and Science Education, National Institute of Education, Nanyang Technological University (NTU), 637616 Singapore
| | - Murukeshan Vadakke Matham
- Centre for Optical and Laser Engineering (COLE), School of Mechanical and Aerospace Engineering, Nanyang Technological University (NTU), 639798, Singapore
- Singapore Centre for 3D Printing (SC3DP), School of Mechanical and Aerospace Engineering, Nanyang Technological University (NTU), 639798 Singapore
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Jin Y, Liang J, Wu S, Zhang Y, Zhou L, Wang Q, Liu H, Zhu J. Electrical Dynamic Switching of Magnetic Plasmon Resonance Based on Selective Lithium Deposition. Adv Mater 2020; 32:e2000058. [PMID: 32930451 DOI: 10.1002/adma.202000058] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 06/28/2020] [Indexed: 06/11/2023]
Abstract
Active plasmonic nanostructures have garnered considerable interest in physics, chemistry, and material science due to the dynamically switchable capability of plasmonic responses. Here, the first electrically dynamic control of magnetic plasmon resonance (MPR) through structure transformation by selective deposition of lithium on a metal-insulator-metal (MIM) structure is reported. Distinct optical switching between MPR and surface plasmon polariton (SPP) excitations can be enabled by applying a proper electrical current to the electrochemical cell. Furthermore, the structure transformation through lithium metal deposition indicates the reconfigurable MPR excitation in a full cycling of the charging and discharging process. The results may shed light on electrically compatible self-powered active plasmonics as well as nondestructive optical sensing for electrochemical evolution.
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Affiliation(s)
- Yan Jin
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, School of Physics, Key Laboratory of Intelligent Optical Sensing and Manipulation, Ministry of Education, Jiangsu Key Laboratory of Artificial Functional Materials, Nanjing University, Nanjing, 210093, P. R. China
| | - Jie Liang
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, School of Physics, Key Laboratory of Intelligent Optical Sensing and Manipulation, Ministry of Education, Jiangsu Key Laboratory of Artificial Functional Materials, Nanjing University, Nanjing, 210093, P. R. China
| | - Shan Wu
- Key Laboratory of Functional Materials and Devices for Informatics of Anhui Higher Education Institutes, Fuyang Normal University, Fuyang, 236037, P. R. China
| | - Ye Zhang
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, School of Physics, Key Laboratory of Intelligent Optical Sensing and Manipulation, Ministry of Education, Jiangsu Key Laboratory of Artificial Functional Materials, Nanjing University, Nanjing, 210093, P. R. China
| | - Lin Zhou
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, School of Physics, Key Laboratory of Intelligent Optical Sensing and Manipulation, Ministry of Education, Jiangsu Key Laboratory of Artificial Functional Materials, Nanjing University, Nanjing, 210093, P. R. China
| | - Qianjin Wang
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, School of Physics, Key Laboratory of Intelligent Optical Sensing and Manipulation, Ministry of Education, Jiangsu Key Laboratory of Artificial Functional Materials, Nanjing University, Nanjing, 210093, P. R. China
| | - Hui Liu
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, School of Physics, Key Laboratory of Intelligent Optical Sensing and Manipulation, Ministry of Education, Jiangsu Key Laboratory of Artificial Functional Materials, Nanjing University, Nanjing, 210093, P. R. China
| | - Jia Zhu
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, School of Physics, Key Laboratory of Intelligent Optical Sensing and Manipulation, Ministry of Education, Jiangsu Key Laboratory of Artificial Functional Materials, Nanjing University, Nanjing, 210093, P. R. China
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45
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Abstract
Combining both localized surface plasmon polaritons (LSPPs) and propagating surface plasmon polaritons, remote surface-enhanced Raman scattering (SERS) emerges as a novel sensing technology in recent years, which could avoid the overlap of incident light and inelastic scattering light in SERS. Compared to traditional SERS, it has novel applications in sensors, plasmon-driven surface-catalyzed reactions, Raman optical activity, etc. However, the weak Raman intensity of remote SERS impedes its further application. In this work, we demonstrated that the remote SERS signals could be enhanced by more than 100% through the subwavelength interference in dual-path-excited Ag-branched nanowire dimer and nanowire-nanoparticle systems. Our experiment has revealed that remote SERS intensities could be modulated by polarization and phase differences of two incident lights illuminating at two separate nanowire terminals. The simulated electromagnetic field distributions through the finite-difference time-domain (FDTD) method indicate that subwavelength interference occurs in Ag nanowires, which causes the Raman intensities collected at a remote site is greatly influenced by the coherent superposition of propagating surface plasmon polaritons (PSPPs). Our work on this coherent enhancement could not only promote the application of remote SERS but also enlarge the research on light manipulating in the subwavelength.
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Affiliation(s)
- Lingjun Zhang
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China
- Chongqing Key Laboratory of Soft Condensed Matter Physics and Smart Materials, College of Physics, Chongqing University, Chongqing 400044, China
| | - Jianfeng Sun
- Chongqing Key Laboratory of Soft Condensed Matter Physics and Smart Materials, College of Physics, Chongqing University, Chongqing 400044, China
| | - Zhuohao Li
- Chongqing Key Laboratory of Soft Condensed Matter Physics and Smart Materials, College of Physics, Chongqing University, Chongqing 400044, China
| | - Yuan Yuan
- Chongqing Key Laboratory of Soft Condensed Matter Physics and Smart Materials, College of Physics, Chongqing University, Chongqing 400044, China
| | - Anping Liu
- Chongqing Key Laboratory of Soft Condensed Matter Physics and Smart Materials, College of Physics, Chongqing University, Chongqing 400044, China
- Chongqing University Industrial Technology Research Institute, Chongqing 400044, China
| | - Yingzhou Huang
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China
- Chongqing Key Laboratory of Soft Condensed Matter Physics and Smart Materials, College of Physics, Chongqing University, Chongqing 400044, China
- Chongqing University Industrial Technology Research Institute, Chongqing 400044, China
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46
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Feng L, Huo P, Liang Y, Xu T. Photonic Metamaterial Absorbers: Morphology Engineering and Interdisciplinary Applications. Adv Mater 2020; 32:e1903787. [PMID: 31566259 DOI: 10.1002/adma.201903787] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 08/29/2019] [Indexed: 06/10/2023]
Abstract
Recent advances in nanofabrication technologies have spurred many breakthroughs in the field of photonic metamaterials that provide efficient ways of manipulating light-matter interaction at subwavelength scales. As one of the most important applications, photonic metamaterials can be used to implement novel optical absorbers. First the morphology engineering of various photonic metamaterial absorbers is discussed, which is highly associated with impendence matching conditions and resonance modes of the absorbers, thus directly determines their absorption efficiency, operational bandwidth, incident angle, and polarization dependence. Then, the recent achievements of various interdisciplinary applications based on photonic metamaterial absorbers, including structural color generation, ultrasensitive optical sensing, solar steam generation, and highly responsive photodetection, are reviewed. This report is expected to provide an overview and vision for the future development of photonic metamaterial absorbers and their applications in novel nanophotonic systems.
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Affiliation(s)
- Lei Feng
- National Laboratory of Solid-State Microstructures, College of Engineering and Applied Sciences and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
| | - Pengcheng Huo
- National Laboratory of Solid-State Microstructures, College of Engineering and Applied Sciences and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
| | - Yuzhang Liang
- National Laboratory of Solid-State Microstructures, College of Engineering and Applied Sciences and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
| | - Ting Xu
- National Laboratory of Solid-State Microstructures, College of Engineering and Applied Sciences and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
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Yi J, You EM, Ding SY, Tian ZQ. Unveiling the molecule-plasmon interactions in surface-enhanced infrared absorption spectroscopy. Natl Sci Rev 2020; 7:1228-1238. [PMID: 34692147 PMCID: PMC8288858 DOI: 10.1093/nsr/nwaa054] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 03/23/2020] [Accepted: 03/26/2020] [Indexed: 11/12/2022] Open
Abstract
Nanostructure-based surface-enhanced infrared absorption (SEIRA) spectroscopy has attracted tremendous interest as an ultrasensitive detection tool that supplies chemical-fingerprint information. The interactions between molecular vibrations and plasmons lead to not only the enhancement of spectral intensity, but also the distortion of spectral Lorentzian lineshapes into asymmetric Fano-type or more complicated lineshapes in the SEIRA spectra; this effect hampers the correct readout of vibrational frequencies and intensities for an accurate interpretation of the measured spectra and quantitative analysis. In this work, we investigate the Fano interference between molecular vibrations and plasmons based on exact electrodynamic simulations and theoretical models. We report that, even if the molecular vibrational energy is equal to the plasmon resonant energy, the molecule–nanostructure distance-dependent dipole–dipole interactions, the plasmon-mediated coherent intermolecular interactions and the decay rates of plasmons have a significant impact on the SEIRA lineshapes. This study paves the way for controllable Fano interference at the nanoscale and more studies on plasmon-dressed molecular electronic or vibrational excited states.
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Affiliation(s)
- Jun Yi
- State Key Laboratory of Physical Chemistry of Solid Surfaces (PCOSS), Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM), and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - En-Ming You
- State Key Laboratory of Physical Chemistry of Solid Surfaces (PCOSS), Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM), and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Song-Yuan Ding
- State Key Laboratory of Physical Chemistry of Solid Surfaces (PCOSS), Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM), and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Zhong-Qun Tian
- State Key Laboratory of Physical Chemistry of Solid Surfaces (PCOSS), Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM), and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
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Gu L, Wen K, Peng Q, Huang W, Wang J. Surface-Plasmon-Enhanced Perovskite Light-Emitting Diodes. Small 2020; 16:e2001861. [PMID: 32573954 DOI: 10.1002/smll.202001861] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 04/29/2020] [Indexed: 06/11/2023]
Abstract
Perovskite light-emitting diodes (PeLEDs) have attracted considerable attention because of their potential in display and lighting applications. To promote commercialization of PeLEDs, it is important to improve the external quantum efficiency of the devices, which depends on their internal quantum efficiency (IQE) and light extraction efficiency. Optical simulations have revealed that 20-50% of the light generated in the device will be lost to surface plasmon (SP) modes formed in the metal/dielectric interfaces. Therefore, extracting the optical energy in SP modes to the air will greatly increase the light extraction efficiency of PeLEDs. In addition, the SPs can accelerate radiative recombination of the emitter via near-field effects. Thus, the IQE of a PeLED can also be enhanced by SP manipulation. In this review, first, general concepts of the SPs and how they can enhance the efficiency of LEDs are introduced. Then recent progresses in SP-enhanced emission of perovskite films and LEDs are systematically reviewed. After that, the challenges and opportunities of the SP-enhanced PeLEDs are shown, followed by an outlook of further development of the SPs in perovskite optoelectronic devices.
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Affiliation(s)
- Lianghui Gu
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, China
| | - Kaichuan Wen
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, China
| | - Qiming Peng
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, China
| | - Wei Huang
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, China
- Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE) & Shaanxi Institute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an, 710072, China
| | - Jianpu Wang
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, China
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49
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Ullah Z, Nawi I, Witjaksono G, Tansu N, Khattak MI, Junaid M, Siddiqui MA, Magsi SA. Dynamic Absorption Enhancement and Equivalent Resonant Circuit Modeling of Tunable Graphene-Metal Hybrid Antenna. Sensors (Basel) 2020; 20:E3187. [PMID: 32512718 DOI: 10.3390/s20113187] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 03/17/2020] [Accepted: 03/18/2020] [Indexed: 01/23/2023]
Abstract
Plasmonic antennas are attractive optical components of the optoelectronic devices, operating in the far-infrared regime for sensing and imaging applications. However, low optical absorption hinders its potential applications, and their performance is limited due to fixed resonance frequency. In this article, a novel gate tunable graphene-metal hybrid plasmonic antenna with stacking configuration is proposed and investigated to achieve tunable performance over a broad range of frequencies with enhanced absorption characteristics. The hybrid graphene-metal antenna geometry is built up with a hexagon radiator that is supported by the Al2O3 insulator layer and graphene reflector. This stacked structure is deposited in the high resistive Si wafer substrate, and the hexagon radiator itself is a sandwich structure, which is composed of gold hexagon structure and two multilayer graphene stacks. The proposed antenna characteristics i.e., tunability of frequency, the efficiency corresponding to characteristics modes, and the tuning of absorption spectra, are evaluated by full-wave numerical simulations. Besides, the unity absorption peak that was realized through the proposed geometry is sensitive to the incident angle of TM-polarized incidence waves, which can flexibly shift the maxima of the absorption peak from 30 THz to 34 THz. Finally, an equivalent resonant circuit model for the investigated antenna based on the simulations results is designed to validate the antenna performance. Parametric analysis of the proposed antenna is carried out through altering the geometric parameters and graphene parameters in the Computer Simulation Technology (CST) studio. This clearly shows that the proposed antenna has a resonance frequency at 33 THz when the graphene sheet Fermi energy is increased to 0.3 eV by applying electrostatic gate voltage. The good agreement of the simulation and equivalent circuit model results makes the graphene-metal antenna suitable for the realization of far-infrared sensing and imaging device containing graphene antenna with enhanced performance.
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Hu X, Wong KP, Zeng L, Guo X, Liu T, Zhang L, Chen Q, Zhang X, Zhu Y, Fung KH, Lau SP. Infrared Nanoimaging of Surface Plasmons in Type-II Dirac Semimetal PtTe 2 Nanoribbons. ACS Nano 2020; 14:6276-6284. [PMID: 32374588 DOI: 10.1021/acsnano.0c02466] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Topological Dirac semimetals made of two-dimensional transition-metal dichalcogenides (TMDCs) have attracted enormous interest for use in electronic and optoelectronic devices because of their electron transport properties. As van der Waals materials with a strong interlayer interaction, these semimetals are expected to support layer-dependent plasmonic polaritons yet to be revealed experimentally. Here, we demonstrate the apparent retardation and attenuation of mid-infrared (MIR) plasmonic waves in type-II Dirac semimetal platinum tellurium (PtTe2) nanoribbons and nanoflakes by near-field nanoimaging. The attenuated dispersion relations for the plasmonic modes in the PtTe2 nanoribbons (15-25 nm thick) extracted from the near-field standing-wave patterns are applied for the fitting of PtTe2 permittivity in the MIR regime, indicating that both free carriers and Dirac fermions are involved in MIR light-matter interaction in PtTe2. The annihilation of plasmonic modes in the ultrathin (<10 nm) PtTe2 is observed and analyzed, which manifests no near-field resonant pattern due to the intrinsic layer-dependent optoelectronic properties of PtTe2. These results could pave a potential wave for MIR photodetection and modulation with TMDC semimetals.
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Affiliation(s)
- Xin Hu
- Institute of Advanced Magnetic Materials, Hangzhou Dianzi University, Hangzhou 310012, China
- Department of Computing, The Hong Kong Polytechnic University, Hong Kong S.A.R., China
| | - Kin Ping Wong
- Department of Applied Physics, The Hong Kong Polytechnic University, Hong Kong S.A.R., China
| | - Longhui Zeng
- Department of Applied Physics, The Hong Kong Polytechnic University, Hong Kong S.A.R., China
| | - Xuyun Guo
- Department of Applied Physics, The Hong Kong Polytechnic University, Hong Kong S.A.R., China
| | - Tong Liu
- Vacuum Interconnected Nanotech Workstation (NANO-X), Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Lei Zhang
- Department of Computing, The Hong Kong Polytechnic University, Hong Kong S.A.R., China
| | - Qin Chen
- Institute of Nanophotonics, Jinan University, Guangzhou 511443, China
| | - Xuefeng Zhang
- Institute of Advanced Magnetic Materials, Hangzhou Dianzi University, Hangzhou 310012, China
| | - Ye Zhu
- Department of Applied Physics, The Hong Kong Polytechnic University, Hong Kong S.A.R., China
| | - Kin Hung Fung
- Department of Applied Physics, The Hong Kong Polytechnic University, Hong Kong S.A.R., China
| | - Shu Ping Lau
- Department of Applied Physics, The Hong Kong Polytechnic University, Hong Kong S.A.R., China
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