1
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Rok M, Miniewicz A, Zdończyk M, Zarychta B, Mikurenda JW, Bartkiewicz S, Wiśniewska-Bełej M, Cybińska J, Piecha-Bisiorek A. Nonlinear Optical Activity of a Chiral Organic-Inorganic ([(NH 3CH 2CH 2) 3NH]) 2[MnBr 5]Br 5 Photoluminescent and Piezoelectric Crystal. J Phys Chem Lett 2024; 15:5276-5287. [PMID: 38722175 PMCID: PMC11103696 DOI: 10.1021/acs.jpclett.4c00709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 04/29/2024] [Accepted: 05/02/2024] [Indexed: 05/22/2024]
Abstract
The family of Mn-based organic-inorganic hybrids has greatly expanded due to their advantages in applications. They also show superior bright and size-tunable photoluminescence and can be considered a perfect alternative to toxic lead-based compounds. In this work, we present the detailed structural, optical, and electrical characterization of ([(NH3CH2CH2)3NH])2[MnBr5]Br5. The title compound exhibits a unique type of inorganic arrangement created by the trigonal bipyramids. It crystallizes in noncentrosymmetric space group R32, indicating its optical activity, piezoelectricity, and second-order optical nonlinearity proven by the second harmonic of light measurements. The studied crystals exhibit intense photoluminescence originating from the Mn(II) ion 4T1(G) → 6A1 transition. The measured lifetime of the photoluminescence emission is ≤1.5 ms, while the measured quantum yield for both powder and crystal samples reaches ∼70%.
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Affiliation(s)
- Magdalena Rok
- Faculty
of Chemistry, University of Wroclaw, 14 F. Joliot - Curie, 50-383 Wroclaw, Poland
| | - Andrzej Miniewicz
- Institute
of Advanced Materials, Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego
27, 50-370 Wroclaw, Poland
| | - Maria Zdończyk
- Faculty
of Chemistry, University of Wroclaw, 14 F. Joliot - Curie, 50-383 Wroclaw, Poland
- Łukasiewicz
Research Network - PORT Polish Center for Technology Development, ul. Stabłowicka 147, 54-066 Wrocław, Poland
| | - Bartosz Zarychta
- Faculty
of Chemistry, University of Opole, Oleska 48, 45-052 Opole, Poland
| | - Julia W. Mikurenda
- Faculty
of Chemistry, University of Wroclaw, 14 F. Joliot - Curie, 50-383 Wroclaw, Poland
| | - Stanisław Bartkiewicz
- Institute
of Advanced Materials, Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego
27, 50-370 Wroclaw, Poland
| | - Monika Wiśniewska-Bełej
- Institute
of Advanced Materials, Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego
27, 50-370 Wroclaw, Poland
| | - Joanna Cybińska
- Faculty
of Chemistry, University of Wroclaw, 14 F. Joliot - Curie, 50-383 Wroclaw, Poland
- Łukasiewicz
Research Network - PORT Polish Center for Technology Development, ul. Stabłowicka 147, 54-066 Wrocław, Poland
| | - Anna Piecha-Bisiorek
- Faculty
of Chemistry, University of Wroclaw, 14 F. Joliot - Curie, 50-383 Wroclaw, Poland
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2
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Moon JH, Oh E, Koo TM, Jeon YS, Jang YJ, Fu HE, Ko MJ, Kim YK. One-Step Electrochemical Synthesis of Multiyolk-Shell Nanocoils for Exceptional Photocatalytic Performance. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2312214. [PMID: 38190643 DOI: 10.1002/adma.202312214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 12/21/2023] [Indexed: 01/10/2024]
Abstract
Multiyolk-shell (mYS) nanostructures have garnered significant interest in various photocatalysis applications such as water splitting and waste treatment. Nonetheless, the complexity and rigorous conditions for the synthesis have hindered their widespread implementation. This study presents a one-step electrochemical strategy for synthesizing multiyolk-shell nanocoils (mYSNC), wherein multiple cores of noble metal nanoparticles, such as Au, are embedded within the hollow coil-shaped FePO4 shell structures, mitigating the challenges posed by conventional methods. By capitalizing on the dissimilar dissolution rates of bimetallic alloy nanocoils in an electrochemically programmed solution, nanocoils of different shapes and materials, including two variations of mYSNCs are successfully fabricated. The resulting Au-FePO4 mYSNCs exhibit exceptional photocatalytic performance for environmental remediation, demonstrating up to 99% degradation of methylene blue molecules within 50 min and 95% degradation of tetracycline within 100 min under ultraviolet-visible (UV-vis) light source. This remarkable performance can be attributed to the abundant electrochemical active sites, internal voids facilitating efficient light harvesting with coil morphology, amplified localized surface plasmon resonance (LSPR) at the plasmonic nanoparticle-semiconductor interface, and effective band engineering. The innovative approach utilizing bimetallic alloys demonstrates precise geometric control and design of intricate multicomponent hybrid composites, showcasing the potential for developing versatile hollow nanomaterials for catalytic applications.
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Affiliation(s)
- Jun Hwan Moon
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Eunsoo Oh
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Thomas Myeongseok Koo
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Yoo Sang Jeon
- Institute of Engineering Research, Korea University, Seoul, 02841, Republic of Korea
| | - Young Jun Jang
- Department of Semiconductor Systems Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Hong En Fu
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Min Jun Ko
- Department of Radiology, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA
| | - Young Keun Kim
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
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3
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Guo Z, Li J, Liu R, Yang Y, Wang C, Zhu X, He T. Spatially Correlated Chirality in Chiral Two-Dimensional Perovskites Revealed by Second-Harmonic-Generation Circular Dichroism Microscopy. NANO LETTERS 2023; 23:7434-7441. [PMID: 37552583 DOI: 10.1021/acs.nanolett.3c01863] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/10/2023]
Abstract
Understanding the chiral mechanism of chiral hybrid perovskites is a prerequisite for developing relevant chiroptoelectronic applications. Although conventional circular dichroism (CD) spectroscopy can be used to characterize chirality in chiral perovskites, it has a low signal-to-noise ratio and can provide only information about macroscopic chirality. Herein, with the aim of revealing the microscopic chiral mechanism in chiral perovskites, we utilize a spacer cation alloying strategy to construct chiral two-dimensional perovskites. For the first time, we demonstrate second-harmonic-generation CD microarea imaging in chiral perovskite thin films to unveil their spatially correlated chirality. In combination with theoretical calculations, it is revealed that the spatially correlated chirality is caused by localized out-of-plane supramolecular orientations. This work will not only advance the understanding of the mechanism of chiroptical activity in chiral perovskites but also provide inspiration for the rational design and synthesis of perovskites for chirality-related nonlinear optoelectronic devices.
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Affiliation(s)
- Zhihang Guo
- State Key Laboratory of Advanced Optical Communication Systems and Networks, School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Junzi Li
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - Rulin Liu
- School of Science and Engineering, Chinese University of Hong Kong, Shenzhen 518172, China
| | - Yang Yang
- The Institute of Seawater Desalination and Multipurpose Utilization, Ministry of Natural Resources (Tianjin), Tianjin 300192, China
| | - Changshun Wang
- State Key Laboratory of Advanced Optical Communication Systems and Networks, School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Xi Zhu
- School of Science and Engineering, Chinese University of Hong Kong, Shenzhen 518172, China
| | - Tingchao He
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
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4
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Han JH, Kim D, Kim J, Kim G, Fischer P, Jeong HH. Plasmonic Nanostructure Engineering with Shadow Growth. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2107917. [PMID: 35332960 DOI: 10.1002/adma.202107917] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Revised: 02/23/2022] [Indexed: 06/14/2023]
Abstract
Physical shadow growth is a vacuum deposition technique that permits a wide variety of 3D-shaped nanoparticles and structures to be fabricated from a large library of materials. Recent advances in the control of the shadow effect at the nanoscale expand the scope of nanomaterials from spherical nanoparticles to complex 3D shaped hybrid nanoparticles and structures. In particular, plasmonically active nanomaterials can be engineered in their shape and material composition so that they exhibit unique physical and chemical properties. Here, the recent progress in the development of shadow growth techniques to realize hybrid plasmonic nanomaterials is discussed. The review describes how fabrication permits the material response to be engineered and highlights novel functions. Potential fields of application with a focus on photonic devices, biomedical, and chiral spectroscopic applications are discussed.
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Affiliation(s)
- Jang-Hwan Han
- School of Electrical Engineering and Computer Science, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
| | - Doeun Kim
- School of Electrical Engineering and Computer Science, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
| | - Juhwan Kim
- School of Electrical Engineering and Computer Science, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
| | - Gyurin Kim
- School of Electrical Engineering and Computer Science, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
| | - Peer Fischer
- Max Planck Institute for Intelligent Systems, Heisenbergstr. 3, 70569, Stuttgart, Germany
- Institute of Physical Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Hyeon-Ho Jeong
- School of Electrical Engineering and Computer Science, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
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5
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Jones RR, Miksch C, Kwon H, Pothoven C, Rusimova KR, Kamp M, Gong K, Zhang L, Batten T, Smith B, Silhanek AV, Fischer P, Wolverson D, Valev VK. Dense Arrays of Nanohelices: Raman Scattering from Achiral Molecules Reveals the Near-Field Enhancements at Chiral Metasurfaces. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2209282. [PMID: 36631958 DOI: 10.1002/adma.202209282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 12/11/2022] [Indexed: 06/17/2023]
Abstract
Against the background of the current healthcare and climate emergencies, surface enhanced Raman scattering (SERS) is becoming a highly topical technique for identifying and fingerprinting molecules, e.g., within viruses, bacteria, drugs, and atmospheric aerosols. Crucial for SERS is the need for substrates with strong and reproducible enhancements of the Raman signal over large areas and with a low fabrication cost. Here, dense arrays of plasmonic nanohelices (≈100 nm in length), which are of interest for many advanced nanophotonics applications, are investigated, and they are shown to present excellent SERS properties. As an illustration, two new ways to probe near-field enhancement generated with circular polarization at chiral metasurfaces are presented, first using the Raman spectra of achiral molecules (crystal violet) and second using a single, element-specific, achiral molecular vibrational mode (i.e., a single Raman peak). The nanohelices can be fabricated over large areas at a low cost and they provide strong, robust and uniform Raman enhancement. It is anticipated that these advanced materials will find broad applications in surface enhanced Raman spectroscopies and material science.
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Affiliation(s)
- Robin R Jones
- Centre for Photonics and Photonic Materials and Centre for Nanoscience and Nanotechnology, Department of Physics, University of Bath, Claverton Down, BA2 7AY, UK
| | - Cornelia Miksch
- Max Planck Institute for Intelligent Systems, Heisenbergstraße 3, 70569, Stuttgart, Germany
| | - Hyunah Kwon
- Max Planck Institute for Intelligent Systems, Heisenbergstraße 3, 70569, Stuttgart, Germany
| | - Coosje Pothoven
- VSPARTICLE, Molengraaffsingel 10, JD Delft, 2629, The Netherlands
| | - Kristina R Rusimova
- Centre for Photonics and Photonic Materials and Centre for Nanoscience and Nanotechnology, Department of Physics, University of Bath, Claverton Down, BA2 7AY, UK
| | - Maarten Kamp
- VSPARTICLE, Molengraaffsingel 10, JD Delft, 2629, The Netherlands
| | - Kedong Gong
- Department of Environmental Science and Engineering, Fudan University, Shanghai, 200433, China
| | - Liwu Zhang
- Department of Environmental Science and Engineering, Fudan University, Shanghai, 200433, China
| | - Tim Batten
- Renishaw plc, New Mills, Kingswood, Wotton-under-Edge, GL12 8JR, UK
| | - Brian Smith
- Renishaw plc, New Mills, Kingswood, Wotton-under-Edge, GL12 8JR, UK
| | - Alejandro V Silhanek
- Experimental Physics of Nanostructured Materials, Q-MAT, CESAM, University of Liége, Sart Tilman, B-4000, Belgium
| | - Peer Fischer
- Max Planck Institute for Intelligent Systems, Heisenbergstraße 3, 70569, Stuttgart, Germany
- Institute of Physical Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Daniel Wolverson
- Centre for Photonics and Photonic Materials and Centre for Nanoscience and Nanotechnology, Department of Physics, University of Bath, Claverton Down, BA2 7AY, UK
| | - Ventsislav K Valev
- Centre for Photonics and Photonic Materials and Centre for Nanoscience and Nanotechnology, Department of Physics, University of Bath, Claverton Down, BA2 7AY, UK
- Centre for Therapeutic Innovation, University of Bath, Bath, BA2 7AY, UK
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6
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Whiting EB, Kang L, Jenkins RP, Campbell SD, Werner DH. Broadband plasmonic chiral meta-mirrors. OPTICS EXPRESS 2023; 31:22415-22423. [PMID: 37475353 DOI: 10.1364/oe.494714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 06/07/2023] [Indexed: 07/22/2023]
Abstract
Chiral meta-mirrors provide a unique opportunity for achieving handedness-selective strong light-matter interaction at the nanometer scale. Importantly, the chiral resonances observed in chiral meta-mirrors arise from the spin-dependent resonant cavity which, however, is generally narrowband. In this paper, by exploiting a genetic algorithm (GA) based optimization method, we numerically validate a chiral meta-mirror with octave bandwidth. In particular, in the wavelength range from 1000 to 2000 nm, the proposed chiral meta-mirror strongly absorbs circularly polarized light of one handedness while highly reflecting the other. A field analysis indicates that the observed broadband chiroptical response can be attributed to the multiple chiral resonances supported by the optimized meta-mirror across the band of interest. The observed broadband chiral response confirms the potential of advanced inverse-design approaches for the creation of chiral metadevices with sophisticated functionalities. Based on the Lorentz reciprocity theorem, we show that the proposed meta-mirror can enable chiral-selective broadband second harmonic generation (SHG). Our study indicates that the application of advanced inverse-design approaches can greatly facilitate the development of metadevices with strong chiral response in both the linear and nonlinear regimes.
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7
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Zhang Q, Wang J, Xie R, Gu Z, Zhang Z, Wang X, Zhang H, Chen C, Chen W, Ding J, Zhang X. Four-channel joint-polarization-frequency-multiplexing encryption meta-hologram based on dual-band polarization multiplexing meta-atoms. OPTICS EXPRESS 2023; 31:17569-17579. [PMID: 37381487 DOI: 10.1364/oe.487483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 04/22/2023] [Indexed: 06/30/2023]
Abstract
Holography is an advanced imaging technology where image information can be reconstructed without a lens. Recently, multiplexing techniques have been widely adapted to realize multiple holographic images or functionalities in a meta-hologram. In this work, a reflective four-channel meta-hologram is proposed to further increase the channel capacity by simultaneously implementing frequency and polarization multiplexing. Compared to the single multiplexing technique, the number of channels achieves a multiplicative growth of the two multiplexing techniques, as well as allowing meta-devices to possess cryptographic characteristics. Specifically, spin-selective functionalities for circular polarizations can be achieved at lower frequency, while different functionalities can be obtained at higher frequency under different linearly polarized incidences. As an illustrative example, a four-channel joint-polarization-frequency-multiplexing meta-hologram is designed, fabricated, and characterized. The measured results agree well with the numerically calculated and full-wave simulated ones, which provides the proposed method with great potential in numerous opportunities such as multi-channel imaging and information encryption technology.
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8
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Wang P, Hu R, Huang X, Wang T, Hu S, Hu M, Xu H, Li X, Liu K, Wang S, Kang L, Werner DH. Terahertz Chiral Metamaterials Enabled by Textile Manufacturing. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2110590. [PMID: 35218258 DOI: 10.1002/adma.202110590] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 02/13/2022] [Indexed: 06/14/2023]
Abstract
Easy-to-fabricate, large-area, and inexpensive microstructures that realize control of the polarization of terahertz (THz) radiation are of fundamental importance to the development of the field of THz wave photonics. However, due to the lack of natural materials that can facilitate strong THz radiation-matter interactions, THz polarization components remain an undeveloped technology. Strong resonance-based responses offered by THz metamaterials have led to the recent development of THz metadevices, whereas, for polarization control devices, micrometer-scale fabrication techniques including aligned photolithography are generally required to create multilayer microstructures. In this work, leveraging a two-step textile manufacturing approach, a chiral metamaterial capable of exhibiting strong chiroptical responses at THz frequencies is demonstrated. Chiral-selective transmission and pronounced optical activity are experimentally observed. In sharp contrast to smart-clothing-related devices (e.g., textile antennas), the investigated chiral metamaterials gain their THz properties directly from the yarn-twisting enabled microhelical strings. It is envisioned that the interplay between meta-atom designs and textile manufacturing technology will lead to a new family of metadevices for complete control over the phase, amplitude, and polarization of THz radiation.
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Affiliation(s)
- Peng Wang
- Hubei Engineering and Technology Research Center for Functional Fiber Fabrication and Testing, Wuhan Textile University, Wuhan, 430200, China
- School of Electronic and Electrical Engineering, Wuhan Textile University, Wuhan, 430200, China
| | - Rui Hu
- Hubei Engineering and Technology Research Center for Functional Fiber Fabrication and Testing, Wuhan Textile University, Wuhan, 430200, China
- School of Electronic and Electrical Engineering, Wuhan Textile University, Wuhan, 430200, China
| | - Xiaotian Huang
- Hubei Engineering and Technology Research Center for Functional Fiber Fabrication and Testing, Wuhan Textile University, Wuhan, 430200, China
- School of Electronic and Electrical Engineering, Wuhan Textile University, Wuhan, 430200, China
| | - Teng Wang
- School of Electronic and Electrical Engineering, Wuhan Textile University, Wuhan, 430200, China
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan, 430200, China
| | - Shulin Hu
- Hubei Engineering and Technology Research Center for Functional Fiber Fabrication and Testing, Wuhan Textile University, Wuhan, 430200, China
- School of Electronic and Electrical Engineering, Wuhan Textile University, Wuhan, 430200, China
| | - Min Hu
- Hubei Engineering and Technology Research Center for Functional Fiber Fabrication and Testing, Wuhan Textile University, Wuhan, 430200, China
- School of Electronic and Electrical Engineering, Wuhan Textile University, Wuhan, 430200, China
| | - Huanhuan Xu
- Hubei Engineering and Technology Research Center for Functional Fiber Fabrication and Testing, Wuhan Textile University, Wuhan, 430200, China
- School of Electronic and Electrical Engineering, Wuhan Textile University, Wuhan, 430200, China
| | - Xiaoyu Li
- Hubei Engineering and Technology Research Center for Functional Fiber Fabrication and Testing, Wuhan Textile University, Wuhan, 430200, China
- School of Electronic and Electrical Engineering, Wuhan Textile University, Wuhan, 430200, China
| | - Keshuai Liu
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan, 430200, China
| | - Shengxiang Wang
- Hubei Engineering and Technology Research Center for Functional Fiber Fabrication and Testing, Wuhan Textile University, Wuhan, 430200, China
- School of Electronic and Electrical Engineering, Wuhan Textile University, Wuhan, 430200, China
- Engineering Research Center for Intelligent Micro-nano Medical Equipment and Key Technologies, Wuhan Textile University, Wuhan, 430200, China
| | - Lei Kang
- Department of Electrical Engineering, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Douglas H Werner
- Department of Electrical Engineering, The Pennsylvania State University, University Park, PA, 16802, USA
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9
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Ohnoutek L, Olohan BJ, Jones RR, Zheng X, Jeong HH, Valev VK. Second harmonic Rayleigh scattering optical activity of single Ag nanohelices in a liquid. NANOSCALE 2022; 14:3888-3898. [PMID: 35212336 DOI: 10.1039/d1nr06800h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Determining the chirality of molecules and nanoparticles often relies on circular dichroism and optical rotation: two chiral optical (chiroptical) effects in the linear optical regime. Although these linear effects are weak compared to nonlinear chiroptical effects, they have the advantage of being measured in isotropic liquids - free from the complications of anisotropy. Recently, a nonlinear effect: hyper-Rayleigh scattering optical activity (HRS OA) has been shown to reliably distinguish between the two chiral forms of Ag nanohelices, suspended in isotropic liquids. However, this first demonstration of HRS OA also opened new questions. For instance, at a fundamental level, it is not clear what the role of interactions between nanoparticles is. Moreover, the influence of the ultrafast pulse chirp is unknown. Here, we demonstrate HRS OA from well below two Ag nanohelices in the illumination volume, precluding any interactions. Additionally, we performed the first measurements of HRS depolarization ratios in this system and find a value of ≈1. We also show that HRS is highly robust against the chirp of the ultrafast pulses. An important reason for the strong (down to single nanohelix) sensitivity of our experiments is the large chiroptical interaction at the fundamental frequency; this point is illustrated with two sets of numerical simulations of the electromagnetic near-fields. Our results highlight HRS OA as a highly sensitive experimental method for characterization of chiral solutions/suspensions, in tiny illumination volumes.
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Affiliation(s)
- Lukas Ohnoutek
- Centre for Photonics and Photonic Materials, University of Bath, Bath, BA2 7AY, UK
- Centre for Nanoscience and Nanotechnology, University of Bath, Bath, BA2 7AY, UK
- Centre for Therapeutic Innovation, University of Bath, Bath, BA2 7AY, UK.
| | - Ben J Olohan
- Centre for Photonics and Photonic Materials, University of Bath, Bath, BA2 7AY, UK
- Centre for Nanoscience and Nanotechnology, University of Bath, Bath, BA2 7AY, UK
- Centre for Therapeutic Innovation, University of Bath, Bath, BA2 7AY, UK.
| | - Robin R Jones
- Centre for Photonics and Photonic Materials, University of Bath, Bath, BA2 7AY, UK
- Centre for Nanoscience and Nanotechnology, University of Bath, Bath, BA2 7AY, UK
- Centre for Therapeutic Innovation, University of Bath, Bath, BA2 7AY, UK.
| | - Xuezhi Zheng
- Department of Electrical Engineering (ESAT), WaveCore Division, KU Leuven, Kasteelpark Arenberg 10, BUS 2444, Leuven, B-3001, Belgium
| | - Hyeon-Ho Jeong
- Max Planck Institute for Intelligent Systems, 70569 Stuttgart, Germany
- School of Electrical Engineering and Computer Science, Gwangju Institute of Science and Technology, 61005 Gwangju, Republic of Korea
| | - Ventsislav K Valev
- Centre for Photonics and Photonic Materials, University of Bath, Bath, BA2 7AY, UK
- Centre for Nanoscience and Nanotechnology, University of Bath, Bath, BA2 7AY, UK
- Centre for Therapeutic Innovation, University of Bath, Bath, BA2 7AY, UK.
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10
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Liu J, Yang L, Qin P, Zhang S, Yung KKL, Huang Z. Recent Advances in Inorganic Chiral Nanomaterials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2005506. [PMID: 33594700 DOI: 10.1002/adma.202005506] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 10/22/2020] [Indexed: 05/27/2023]
Abstract
Inorganic nanoparticles offer a multifunctional platform for biomedical applications in drug delivery, biosensing, bioimaging, disease diagnosis, screening, and therapies. Homochirality prevalently exists in biological systems composed of asymmetric biochemical activities and processes, so biomedical applications essentially favor the usage of inorganic chiral nanomaterials, which have been widely studied in the past two decades. Here, the latest investigations are summarized including the characterization of 3D stereochirality, the bionic fabrication of hierarchical chirality, extension of the compositional space to poly-elements, studying optical activities with the (sub-)single-particle resolution, and the experimental demonstration in biomedical applications. These advanced studies pave the way toward fully understanding the two important chiral effects (i.e., the chiroptical and enantioselective effects), and prospectively promote the flexible design and fabrication of inorganic chiral nanoparticles with engineerable functionalities to solve diverse practical problems closely associated with environment and public health.
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Affiliation(s)
- Junjun Liu
- Department of Physics, Hong Kong Baptist University (HKBU), Kowloon Tong, Kowloon, Hong Kong SAR, China
- HKBU Institute of Research and Continuing Education, Shenzhen, Guangdong, 518057, China
| | - Lin Yang
- Department of Physics, Hong Kong Baptist University (HKBU), Kowloon Tong, Kowloon, Hong Kong SAR, China
- HKBU Institute of Research and Continuing Education, Shenzhen, Guangdong, 518057, China
| | - Ping Qin
- Department of Physics, Hong Kong Baptist University (HKBU), Kowloon Tong, Kowloon, Hong Kong SAR, China
- Golden Meditech Centre for NeuroRegeneration Sciences, HKBU, Kowloon Tong, Kowloon, Hong Kong SAR, China
| | - Shiqing Zhang
- Golden Meditech Centre for NeuroRegeneration Sciences, HKBU, Kowloon Tong, Kowloon, Hong Kong SAR, China
- Department of Biology, HKBU, Kowloon Tong, Kowloon, Hong Kong SAR, China
| | - Ken Kin Lam Yung
- Golden Meditech Centre for NeuroRegeneration Sciences, HKBU, Kowloon Tong, Kowloon, Hong Kong SAR, China
- Department of Biology, HKBU, Kowloon Tong, Kowloon, Hong Kong SAR, China
| | - Zhifeng Huang
- Department of Physics, Hong Kong Baptist University (HKBU), Kowloon Tong, Kowloon, Hong Kong SAR, China
- HKBU Institute of Research and Continuing Education, Shenzhen, Guangdong, 518057, China
- Golden Meditech Centre for NeuroRegeneration Sciences, HKBU, Kowloon Tong, Kowloon, Hong Kong SAR, China
- Institute of Advanced Materials, State Key Laboratory of Environmental and Biological Analysis, HKBU, Kowloon Tong, Kowloon, Hong Kong SAR, China
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11
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Moon JH, Lee MY, Park BC, Jeon YS, Kim S, Kim T, Ko MJ, Cho KH, Nam KT, Kim YK. Inorganic Hollow Nanocoils Fabricated by Controlled Interfacial Reaction and Their Electrocatalytic Properties. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2103575. [PMID: 34561965 DOI: 10.1002/smll.202103575] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Revised: 08/07/2021] [Indexed: 06/13/2023]
Abstract
The fabrication of 3D hollow nanostructures not only allows the tactical provision of specific physicochemical properties but also broadens the application scope of such materials in various fields. The synthesis of 3D hollow nanocoils (HNCs), however, is limited by the lack of an appropriate template or synthesis method, thereby restricting the wide-scale application of HNCs. Herein, a strategy for preparing HNCs by harnessing a single sacrificial template to modulate the interfacial reaction at a solid-liquid interface that allows the shape-regulated transition is studied. Furthermore, the triggering of the Kirkendall effect in 3D HNCs is demonstrated. Depending on the final state of the transition metal ions reduced during the electrochemical preparation of HNCs, the surface states of the binding anions and the composition of the HNCs can be tuned. In a single-component CrPO4 HNC with a clean surface, the Kirkendall effect of the coil shape is analyzed at various points throughout the reaction. The rough-surface multicomponent MnOx P0.21 HNCs are complexed with ligand-modified BF4 -Mn3 O4 nanoparticles. The fabricated nanocomposite exhibits an overpotential decrease of 25 mV at neutral pH compared to pure BF4 -Mn3 O4 nanoparticles because of the increased active surface area.
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Affiliation(s)
- Jun Hwan Moon
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Moo Young Lee
- Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Republic of Korea
| | - Bum Chul Park
- Brain Korea Center for Smart Materials and Devices, Korea University, Seoul, 02841, Republic of Korea
| | - Yoo Sang Jeon
- Institute of Engineering Research, Korea University, Seoul, 02841, Republic of Korea
| | - Seunghyun Kim
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Taesoon Kim
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Min Jun Ko
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Kang Hee Cho
- Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Republic of Korea
| | - Ki Tae Nam
- Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Republic of Korea
| | - Young Keun Kim
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
- Brain Korea Center for Smart Materials and Devices, Korea University, Seoul, 02841, Republic of Korea
- Institute of Engineering Research, Korea University, Seoul, 02841, Republic of Korea
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12
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Metamaterial Reverse Multiple Prediction Method Based on Deep Learning. NANOMATERIALS 2021; 11:nano11102672. [PMID: 34685111 PMCID: PMC8537245 DOI: 10.3390/nano11102672] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 09/30/2021] [Accepted: 10/08/2021] [Indexed: 11/17/2022]
Abstract
Metamaterials and their related research have had a profound impact on many fields, including optics, but designing metamaterial structures on demand is still a challenging task. In recent years, deep learning has been widely used to guide the design of metamaterials, and has achieved outstanding performance. In this work, a metamaterial structure reverse multiple prediction method based on semisupervised learning was proposed, named the partially Conditional Generative Adversarial Network (pCGAN). It could reversely predict multiple sets of metamaterial structures that can meet the needs by inputting the required target spectrum. This model could reach a mean average error (MAE) of 0.03 and showed good generality. Compared with the previous metamaterial design methods, this method could realize reverse design and multiple design at the same time, which opens up a new method for the design of new metamaterials.
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13
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Han D, Zhang L, Chen X. Mechanical modulation of multifunctional responses in three-dimensional terahertz metamaterials. OPTICS EXPRESS 2021; 29:32853-32864. [PMID: 34809108 DOI: 10.1364/oe.437459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 09/18/2021] [Indexed: 06/13/2023]
Abstract
Reconfigurable metamaterials have attracted a surge of attention for their formidable capability to dynamically manipulate the electromagnetic wave. Among the multifarious modulation methods, mechanical deformation is widely adopted to tune the electromagnetic response of the stereotype metamaterial owing to its straightforward and continuous controllability on the metamaterial structure. However, previous morphologic reconfigurations of metamaterials are typically confined in planar deformation that renders limited tunable functionalities. Here we have proposed a novel concept of out-of-plane deformation to broaden the functionalities of mechanically reconfigurable metamaterials via introducing a cross-shaped metamaterial. Our results show that the out-of-plane mechanical modulation dramatically enhances the magnetic response of the pristine metamaterial. Furthermore, by uncrossing the bars of cross-shaped meta-atoms, a L-shaped metamaterial is proposed to verify the effectiveness of such a mechanical method on the handedness switching via changing mechanical loading-paths. More importantly, the differential transmission for circularly polarized incidences can be continuously modulated from -0.45 to 0.45, and the polarization states of the transmission wave can be dynamically manipulated under the linearly polarized illumination. Our proposed mechanical modulation principle might open a novel avenue toward the three-dimensional reconfigurable metamaterials and shows their ample applications in the areas of chiroptical control, tunable polarization rotator and converter.
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14
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Fu D, Xin J, He Y, Wu S, Zhang X, Zhang XM, Luo J. Chirality-Dependent Second-Order Nonlinear Optical Effect in 1D Organic-Inorganic Hybrid Perovskite Bulk Single Crystal. Angew Chem Int Ed Engl 2021; 60:20021-20026. [PMID: 34223690 DOI: 10.1002/anie.202108171] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Indexed: 11/10/2022]
Abstract
The introduction of chirality into organic-inorganic hybrid perovskites (OIHPs) is expected to achieve excellent photoelectric and nonlinear materials related to circular dichroism. Owing to the existence of asymmetric center and intrinsic chirality in the chiral OIHPs, the different efficiencies of second harmonic generation (SHG) signal occurs when the circularly polarized light (CPL) with different phases passes through the chiral crystal, which is defined as second harmonic generation circular dichroism (SHG-CD). Here, the SHG-CD effect is developed in bulk single crystals of chiral one-dimensional (1D) [(R/S)-3-aminopiperidine]PbI4 . It is the first time that CPL is distinguished using chirality-dependent SHG-CD effect in OIHPs bulk single crystals. Such SHG-CD technology extends the detection range to near infrared region (NIR). In this way, the anisotropy factor (gSHG-CD ) through SHG-CD signal is as high as 0.21.
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Affiliation(s)
- Dongying Fu
- Institute of Crystalline Materials, Shanxi University, Taiyuan, Shanxi, 030006, China
| | - Jianli Xin
- Institute of Crystalline Materials, Shanxi University, Taiyuan, Shanxi, 030006, China
| | - Yueyue He
- Institute of Crystalline Materials, Shanxi University, Taiyuan, Shanxi, 030006, China
| | - Shichao Wu
- Institute of Crystalline Materials, Shanxi University, Taiyuan, Shanxi, 030006, China
| | - Xinyuan Zhang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, China.,University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Xian-Ming Zhang
- College of Chemistry & Chemical Engineering, Key Laboratory of Interface Science and Engineering in Advanced Material, Ministry of Education, Taiyuan University of Technology, Taiyuan, Shanxi, 030024, China
| | - Junhua Luo
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, China.,University of the Chinese Academy of Sciences, Beijing, 100049, China
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15
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Fu D, Xin J, He Y, Wu S, Zhang X, Zhang X, Luo J. Chirality‐Dependent Second‐Order Nonlinear Optical Effect in 1D Organic–Inorganic Hybrid Perovskite Bulk Single Crystal. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202108171] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Dongying Fu
- Institute of Crystalline Materials Shanxi University Taiyuan Shanxi 030006 China
| | - Jianli Xin
- Institute of Crystalline Materials Shanxi University Taiyuan Shanxi 030006 China
| | - Yueyue He
- Institute of Crystalline Materials Shanxi University Taiyuan Shanxi 030006 China
| | - Shichao Wu
- Institute of Crystalline Materials Shanxi University Taiyuan Shanxi 030006 China
| | - Xinyuan Zhang
- State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian 350002 China
- University of the Chinese Academy of Sciences Beijing 100049 China
| | - Xian‐Ming Zhang
- College of Chemistry & Chemical Engineering, Key Laboratory of Interface Science and Engineering in Advanced Material, Ministry of Education Taiyuan University of Technology Taiyuan Shanxi 030024 China
| | - Junhua Luo
- State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian 350002 China
- University of the Chinese Academy of Sciences Beijing 100049 China
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16
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Frizyuk K, Melik-Gaykazyan E, Choi JH, Petrov MI, Park HG, Kivshar Y. Nonlinear Circular Dichroism in Mie-Resonant Nanoparticle Dimers. NANO LETTERS 2021; 21:4381-4387. [PMID: 33983751 DOI: 10.1021/acs.nanolett.1c01025] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
We studied the nonlinear response of a dimer composed of two identical Mie-resonant dielectric nanoparticles illuminated normally by a circularly polarized light. We developed a general theory describing hybridization of multipolar modes of the coupled nanoparticles and reveal nonvanishing nonlinear circular dichroism (CD) in the second-harmonic generation (SHG) signal enhanced by the multipolar resonances in the dimer, provided its axis is oriented under an angle to the crystalline lattice of the dielectric material. We supported our multipolar hybridization theory by experimental results obtained for the AlGaAs dimers placed on an engineered substrate.
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Affiliation(s)
- Kristina Frizyuk
- Department of Physics and Engineering, ITMO University, St. Petersburg 197101, Russia
| | - Elizaveta Melik-Gaykazyan
- Nonlinear Physics Centre, Research School of Physics, Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Jae-Hyuck Choi
- Department of Physics, Korea University, Seoul 02841, Republic of Korea
| | - Mihail I Petrov
- Department of Physics and Engineering, ITMO University, St. Petersburg 197101, Russia
| | - Hong-Gyu Park
- Department of Physics, Korea University, Seoul 02841, Republic of Korea
- KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul 02841, Republic of Korea
| | - Yuri Kivshar
- Nonlinear Physics Centre, Research School of Physics, Australian National University, Canberra, Australian Capital Territory 2601, Australia
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17
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Dong B, Liu J, Xue M, Ni Z, Guo Y, Huang Z, Zhang Z. One-Fold Anisotropy of Silver Chiral Nanoparticles Studied by Second-Harmonic Generation. ACS Sens 2021; 6:454-460. [PMID: 33332104 DOI: 10.1021/acssensors.0c02031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Second-harmonic generation (SHG) integrated with diverse nonlinear optical activity characterization has high sensitivity to detect the symmetry of materials at an interface, but the study is in its infancy. Here, we employ SHG with linear dichroism (or SHG-LD) to study the chiroptical origin of silver (Ag) chiral nanoparticles (CNPs) deposited by glancing angle deposition (GLAD). It is found that Ag CNPs show the chiroptical activity ascribed to not only the structural chirality (i.e., atomically chiral lattices) but also one-fold anisotropy at an interface due to the substrate rotation during GLAD. Therefore, the SHG-LD shows great potential to provide valuable complementary information to study the chiroptical properties of chiral metamaterials.
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Affiliation(s)
- Bin Dong
- Beijing National Laboratory of Molecular Sciences, State Key Laboratory of Molecular Reaction Dynamics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Junjun Liu
- Department of Physics, Hong Kong Baptist University (HKBU), Kowloon Tong, Kowloon, Hong Kong SAR, China
- HKBU Institute of Research and Continuing Education, Shenzhen, Guangdong 518057, China
| | - Man Xue
- Beijing National Laboratory of Molecular Sciences, State Key Laboratory of Molecular Reaction Dynamics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Ziyue Ni
- Department of Physics, Hong Kong Baptist University (HKBU), Kowloon Tong, Kowloon, Hong Kong SAR, China
| | - Yuan Guo
- Beijing National Laboratory of Molecular Sciences, State Key Laboratory of Molecular Reaction Dynamics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Zhifeng Huang
- Department of Physics, Hong Kong Baptist University (HKBU), Kowloon Tong, Kowloon, Hong Kong SAR, China
- HKBU Institute of Research and Continuing Education, Shenzhen, Guangdong 518057, China
- Institute of Advanced Materials, State Key Laboratory of Environmental and Biological Analysis, Golden Meditech Centre for NeuroRegeneration Sciences, HKBU, Kowloon Tong, Kowloon, Hong Kong SAR, China
| | - Zhen Zhang
- Beijing National Laboratory of Molecular Sciences, State Key Laboratory of Molecular Reaction Dynamics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of the Chinese Academy of Sciences, Beijing 100049, China
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18
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Kim D, Yu J, Hwang I, Park S, Demmerle F, Boehm G, Amann MC, Belkin MA, Lee J. Giant Nonlinear Circular Dichroism from Intersubband Polaritonic Metasurfaces. NANO LETTERS 2020; 20:8032-8039. [PMID: 33112621 DOI: 10.1021/acs.nanolett.0c02978] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Nonlinear metasurfaces are advancing into a new paradigm of "flat nonlinear optics" owing to the ability to engineer local nonlinear responses in subwavelength-thin films. Recently, attempts have been made to expand the design space of nonlinear metasurfaces through nonlinear chiral responses. However, the development of metasurfaces that display both giant nonlinear circular dichroism and significantly large nonlinear optical response is still an unresolved challenge. Herein, we propose a method that induces giant nonlinear responses with near-unity circular dichroism using polaritonic metasurfaces with optical modes in chiral plasmonic nanocavities coupled with intersubband transitions in semiconductor heterostructures designed to have giant second and third order nonlinear responses. A stark contrast between effective nonlinear susceptibility elements for the two spin states of circularly polarized pump beams was seen in the hybrid structure. Experimentally, near-unity nonlinear circular dichroism and conversion efficiencies beyond 10-4% for second- and third-harmonic generation were achieved simultaneously in a single chip.
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Affiliation(s)
- Daeik Kim
- Department of Electrical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Jaeyeon Yu
- Department of Electrical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Inyong Hwang
- Department of Electrical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Seongjin Park
- Department of Electrical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Frederic Demmerle
- Walter Schottky Institut, Technische Universität München, Am Coulombwall 4, Garching 85748, Germany
| | - Gerhard Boehm
- Walter Schottky Institut, Technische Universität München, Am Coulombwall 4, Garching 85748, Germany
| | - Markus-Christian Amann
- Walter Schottky Institut, Technische Universität München, Am Coulombwall 4, Garching 85748, Germany
| | - Mikhail A Belkin
- Walter Schottky Institut, Technische Universität München, Am Coulombwall 4, Garching 85748, Germany
| | - Jongwon Lee
- Department of Electrical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
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19
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Famularo NR, Kang L, Li Z, Zhao T, Knappenberger KL, Keating CD, Werner DH. Linear and nonlinear chiroptical response from individual 3D printed plasmonic and dielectric micro-helices. J Chem Phys 2020; 153:154702. [PMID: 33092362 DOI: 10.1063/5.0020539] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Sub-wavelength chiral resonators formed from artificial structures exhibit exceedingly large chiroptical responses compared to those observed in natural media. Owing to resonant excitation, chiral near fields can be significantly enhanced for these resonators, holding great promise for developing enantioselective photonic components such as biochemical sensors based on circular dichroism (CD) and spin-dependent nonlinear imaging. In the present work, strong linear and nonlinear chiroptical responses (scattering CD > 0.15 and nonlinear differential CDs > 0.4) at visible and near infrared frequencies are reported for the first time for individual micrometer-scale plasmonic and dielectric helical structures. By leveraging dark-field spectroscopy and nonlinear optical microscopy, the circular-polarization-selective scattering behavior and nonlinear optical responses (e.g., second harmonic generation and two-photon photoluminescence) of 3D printed micro-helices with feature sizes comparable to the wavelength (total length is ∼5λ) are demonstrated. These micro-helices provide potential for readily accessible photonic platforms, facilitating an enantiomeric analysis of chiral materials. One such example is the opportunity to explore ultracompact photonic devices based on single, complex meta-atoms enabled by state-of-the-art 3D fabrication techniques.
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Affiliation(s)
- Nicole R Famularo
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - Lei Kang
- Department of Electrical Engineering and Center for Nanoscale Science, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - Zehua Li
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - Tian Zhao
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - Kenneth L Knappenberger
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - Christine D Keating
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - Douglas H Werner
- Department of Electrical Engineering and Center for Nanoscale Science, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
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20
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Ohnoutek L, Cho NH, Allen Murphy AW, Kim H, Răsădean DM, Pantoş GD, Nam KT, Valev VK. Single Nanoparticle Chiroptics in a Liquid: Optical Activity in Hyper-Rayleigh Scattering from Au Helicoids. NANO LETTERS 2020. [PMID: 32579377 DOI: 10.15125/bath-00862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Linear optical methods of determining the chirality of organic and inorganic materials have relied on weak chiral optical (chiroptical) effects. Nonlinear chiroptical characterization holds the potential of much greater sensitivity and smaller interaction volumes. However, suitable materials on which to perform measurements have been lacking for decades. Here, we present the first nonlinear chiroptical characterization of crystallographic chirality in gold helicoids (≈150 nm size) and core/shell helicoids with the newly discovered hyper-Rayleigh scattering optical activity (HRS OA) technique. The observed chiroptical signal is, on average, originating from between ≈0.05 and ≈0.13 helicoids, i.e., less than a single nanoparticle. The measured HRS OA ellipticities reach ≈3°, for a concentration ≈109 times smaller than that of chiral molecules with similar nonlinear chiroptical response. These huge values indicate that the helicoids are excellent candidates for future nonlinear chiroptical materials and applications.
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Affiliation(s)
- Lukas Ohnoutek
- Centre for Photonics and Photonic Materials, University of Bath, Bath BA2 7AY, U.K
- Centre for Nanoscience and Nanotechnology, University of Bath, Bath BA2 7AY, U.K
| | - Nam Heon Cho
- Material Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Alexander William Allen Murphy
- Centre for Photonics and Photonic Materials, University of Bath, Bath BA2 7AY, U.K
- Centre for Nanoscience and Nanotechnology, University of Bath, Bath BA2 7AY, U.K
| | - Hyeohn Kim
- Material Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | | | | | - Ki Tae Nam
- Material Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Ventsislav Kolev Valev
- Centre for Photonics and Photonic Materials, University of Bath, Bath BA2 7AY, U.K
- Centre for Nanoscience and Nanotechnology, University of Bath, Bath BA2 7AY, U.K
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21
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Ohnoutek L, Cho NH, Allen Murphy AW, Kim H, Răsădean DM, Pantoş GD, Nam KT, Valev VK. Single Nanoparticle Chiroptics in a Liquid: Optical Activity in Hyper-Rayleigh Scattering from Au Helicoids. NANO LETTERS 2020; 20:5792-5798. [PMID: 32579377 PMCID: PMC7467767 DOI: 10.1021/acs.nanolett.0c01659] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 06/24/2020] [Indexed: 06/01/2023]
Abstract
Linear optical methods of determining the chirality of organic and inorganic materials have relied on weak chiral optical (chiroptical) effects. Nonlinear chiroptical characterization holds the potential of much greater sensitivity and smaller interaction volumes. However, suitable materials on which to perform measurements have been lacking for decades. Here, we present the first nonlinear chiroptical characterization of crystallographic chirality in gold helicoids (≈150 nm size) and core/shell helicoids with the newly discovered hyper-Rayleigh scattering optical activity (HRS OA) technique. The observed chiroptical signal is, on average, originating from between ≈0.05 and ≈0.13 helicoids, i.e., less than a single nanoparticle. The measured HRS OA ellipticities reach ≈3°, for a concentration ≈109 times smaller than that of chiral molecules with similar nonlinear chiroptical response. These huge values indicate that the helicoids are excellent candidates for future nonlinear chiroptical materials and applications.
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Affiliation(s)
- Lukas Ohnoutek
- Centre
for Photonics and Photonic Materials, University
of Bath, Bath BA2 7AY, U.K.
- Centre
for Nanoscience and Nanotechnology, University
of Bath, Bath BA2 7AY, U.K.
| | - Nam Heon Cho
- Material
Science and Engineering, Seoul National
University, 1 Gwanak-ro,
Gwanak-gu, Seoul 08826, Republic of Korea
| | - Alexander William Allen Murphy
- Centre
for Photonics and Photonic Materials, University
of Bath, Bath BA2 7AY, U.K.
- Centre
for Nanoscience and Nanotechnology, University
of Bath, Bath BA2 7AY, U.K.
| | - Hyeohn Kim
- Material
Science and Engineering, Seoul National
University, 1 Gwanak-ro,
Gwanak-gu, Seoul 08826, Republic of Korea
| | | | | | - Ki Tae Nam
- Material
Science and Engineering, Seoul National
University, 1 Gwanak-ro,
Gwanak-gu, Seoul 08826, Republic of Korea
| | - Ventsislav Kolev Valev
- Centre
for Photonics and Photonic Materials, University
of Bath, Bath BA2 7AY, U.K.
- Centre
for Nanoscience and Nanotechnology, University
of Bath, Bath BA2 7AY, U.K.
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22
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Chen S, Liu W, Li Z, Cheng H, Tian J. Metasurface-Empowered Optical Multiplexing and Multifunction. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1805912. [PMID: 31617616 DOI: 10.1002/adma.201805912] [Citation(s) in RCA: 71] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 07/03/2019] [Indexed: 05/19/2023]
Abstract
Metasurfaces are planar photonic elements composed of subwavelength nanostructures, which can deeply interact with light and exploit new degrees of freedom (DOF) to manipulate optical fields. In the past decade, metasurfaces have drawn great interest from the scientific community due to their profound potential to arbitrarily control light. Here, recent developments of multiplexing and multifunctional metasurfaces, which enable concurrent tasks through a dramatic compact design, are reviewed. The fundamental properties, design strategies, and applications of multiplexing and multifunctional metasurfaces are then discussed. First, recent progress on angular momentum multiplexing, including its behavior under different incident conditions, is considered. Second, a detailed overview of polarization-controlled, wavelength-selective, angle-selective, and reconfigurable multiplexing/multifunctional metasurfaces is provided. Then, the integrated and on-chip design of multifunctional metasurfaces is addressed. Finally, future directions and potential applications are presented.
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Affiliation(s)
- Shuqi Chen
- The Key Laboratory of Weak Light Nonlinear Photonics, Ministry of Education, School of Physics, Teda Institute of Applied Physics, and Renewable Energy Conversion and Storage Center, Nankai University, Tianjin, 300071, China
- The collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi, 030006, China
- Collaborative Innovation Center of Light Manipulations and Applications, Shandong Normal University, Jinan, 250358, China
| | - Wenwei Liu
- The Key Laboratory of Weak Light Nonlinear Photonics, Ministry of Education, School of Physics, Teda Institute of Applied Physics, and Renewable Energy Conversion and Storage Center, Nankai University, Tianjin, 300071, China
| | - Zhancheng Li
- The Key Laboratory of Weak Light Nonlinear Photonics, Ministry of Education, School of Physics, Teda Institute of Applied Physics, and Renewable Energy Conversion and Storage Center, Nankai University, Tianjin, 300071, China
| | - Hua Cheng
- The Key Laboratory of Weak Light Nonlinear Photonics, Ministry of Education, School of Physics, Teda Institute of Applied Physics, and Renewable Energy Conversion and Storage Center, Nankai University, Tianjin, 300071, China
| | - Jianguo Tian
- The Key Laboratory of Weak Light Nonlinear Photonics, Ministry of Education, School of Physics, Teda Institute of Applied Physics, and Renewable Energy Conversion and Storage Center, Nankai University, Tianjin, 300071, China
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23
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Hooper DC, Kuppe C, Wang D, Wang W, Guan J, Odom TW, Valev VK. Second Harmonic Spectroscopy of Surface Lattice Resonances. NANO LETTERS 2019; 19:165-172. [PMID: 30525669 DOI: 10.1021/acs.nanolett.8b03574] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Because of their large figures of merit, surface lattice resonances (SLRs) in metal nanoparticle arrays are very promising for chemical and biomolecular sensing in both liquid and gas media. SLRs are sensitive to refractive index changes both near the surface of the nanoparticles (surface sensitivity) and in the volume between them (bulk sensitivity). Because of its intrinsic surface-sensitivity and a power law dependence on electric fields, second harmonic generation (SHG) spectroscopy can improve upon both the surface and volume sensitivities of SLRs. In this report on SHG spectroscopy of plasmonic nanoparticles, we show that the SHG signal is greatly increased (up to 450 times) by the SLRs. We also demonstrate very narrow resonances in SHG intensity (∼5 nm fwhm). We illustrate how the SHG resonances are highly sensitive to SLRs by varying the fundamental wavelength, angle of incidence, nanoparticle material, and lattice constant of the arrays. Finally, we identify an SHG resonance (10 nm fwhm) that is electric dipole forbidden and can be attributed to higher-order multipoles, enhanced by the strong near-fields of SLRs. Our results open up new and very promising avenues for chemical and biomolecular sensing based on SHG spectroscopy of SLRs.
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Affiliation(s)
- David C Hooper
- Centre for Photonics and Photonic Materials and Centre for Nanoscience and Nanotechnology, Department of Physics , University of Bath , Claverton Down , Bath BA2 4JY , U.K
| | - Christian Kuppe
- Centre for Photonics and Photonic Materials and Centre for Nanoscience and Nanotechnology, Department of Physics , University of Bath , Claverton Down , Bath BA2 4JY , U.K
| | | | | | | | | | - Ventsislav K Valev
- Centre for Photonics and Photonic Materials and Centre for Nanoscience and Nanotechnology, Department of Physics , University of Bath , Claverton Down , Bath BA2 4JY , U.K
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von Weber A, Hooper DC, Jakob M, Valev VK, Kartouzian A, Heiz U. Circular Dichroism and Isotropy - Polarity Reversal of Ellipticity in Molecular Films of 1,1'-Bi-2-Naphtol. Chemphyschem 2018; 20:62-69. [PMID: 30444574 DOI: 10.1002/cphc.201800950] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 11/15/2018] [Indexed: 11/11/2022]
Abstract
We have studied the circular dichroism (CD), in the ultraviolet and visible regions, of the transparent, chiral molecule 1,1'-Bi-2-naphtol (BINOL) in 1.5 μm thick films. The initial transparent film shows an additional negative cotton effect in the CD compared to solution. With time under room temperature the film undergoes a structural phase transition. This goes hand in hand with a cotton effect at the low energy absorption band which inverts with opposite propagation direction of light through the film which is revealed as a polarity reversal of ellipticity (PRE). After completion of the phase transition the film exhibits circular differential scattering throughout the visible range which also shows PRE. The structure change was studied with Raman, microscopy under cross polarization conditions and nonlinear second-harmonic generation circular dichroism (SHG-CD). The superposition of the optical activity of individual molecules and isotropy effects makes an interpretation challenging. Yet overcoming this challenge by finding a suitable model structural information can be derived from CD measurements.
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Affiliation(s)
- Alexander von Weber
- Chair of Physical Chemistry, Chemistry Department & Catalysis Research Center, Technical University of Munich, Lichtenbergstr. 4, D-, 85748, Garching, Germany
| | - David C Hooper
- Centre for Photonics and Photonic Materials, Department of Physics, University of Bath, Claverton Down, Bath, BA2 7AY, United Kingdom.,Centre for Nanoscience and Nanotechnology, Department of Physics, University of Bath, Claverton Down, Bath, BA2 7AY, United Kingdom
| | - Matthias Jakob
- Chair of Physical Chemistry, Chemistry Department & Catalysis Research Center, Technical University of Munich, Lichtenbergstr. 4, D-, 85748, Garching, Germany
| | - Ventsislav K Valev
- Centre for Photonics and Photonic Materials, Department of Physics, University of Bath, Claverton Down, Bath, BA2 7AY, United Kingdom.,Centre for Nanoscience and Nanotechnology, Department of Physics, University of Bath, Claverton Down, Bath, BA2 7AY, United Kingdom
| | - Aras Kartouzian
- Chair of Physical Chemistry, Chemistry Department & Catalysis Research Center, Technical University of Munich, Lichtenbergstr. 4, D-, 85748, Garching, Germany
| | - Ueli Heiz
- Chair of Physical Chemistry, Chemistry Department & Catalysis Research Center, Technical University of Munich, Lichtenbergstr. 4, D-, 85748, Garching, Germany
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25
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Collins JT, Hooper DC, Mark AG, Kuppe C, Valev VK. Second-Harmonic Generation Optical Rotation Solely Attributable to Chirality in Plasmonic Metasurfaces. ACS NANO 2018; 12:5445-5451. [PMID: 29852066 DOI: 10.1021/acsnano.8b00601] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Chiral plasmonic nanostructures, those lacking mirror symmetry, can be designed to manipulate the polarization of incident light resulting in chiroptical (chiral optical) effects such as circular dichroism (CD) and optical rotation (OR). Due to high symmetry sensitivity, corresponding effects in second-harmonic generation (SHG-CD and SHG-OR) are typically much stronger in comparison. These nonlinear effects have long been used for chiral molecular analysis and characterization; however both linear and nonlinear optical rotation can occur even in achiral structures, if the structure is birefringent due to anisotropy. Crucially, chiroptical effects resulting from anisotropy typically exhibit a strong dependence on structural orientation. Here we report a large second-harmonic generation optical rotation of ±45°, due to intrinsic chirality in a highly anisotropic helical metamaterial. The SHG intensity is found to strongly relate to the structural anisotropy; however, the angle of SHG-OR is invariant under sample rotation. We show that by tuning the geometry of anisotropic nanostructures, the interaction between anisotropy, chirality, and experimental geometry can allow even greater control over the chiroptical properties of plasmonic metamaterials.
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Affiliation(s)
- Joel T Collins
- Centre for Photonics and Photonic Materials, and Centre for Nanoscience and Nanotechnology, Department of Physics , University of Bath , Bath , BA2 7AY , United Kingdom
| | - David C Hooper
- Centre for Photonics and Photonic Materials, and Centre for Nanoscience and Nanotechnology, Department of Physics , University of Bath , Bath , BA2 7AY , United Kingdom
| | - Andrew G Mark
- Max Planck Institute for Intelligent Systems , Heisenbergstraße 3 , 70569 Stuttgart , Germany
| | - Christian Kuppe
- Centre for Photonics and Photonic Materials, and Centre for Nanoscience and Nanotechnology, Department of Physics , University of Bath , Bath , BA2 7AY , United Kingdom
| | - Ventsislav K Valev
- Centre for Photonics and Photonic Materials, and Centre for Nanoscience and Nanotechnology, Department of Physics , University of Bath , Bath , BA2 7AY , United Kingdom
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26
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Najafabadi AF, Pakizeh T. Optical absorbing origin of chiroptical activity in planar plasmonic metasurfaces. Sci Rep 2017; 7:10251. [PMID: 28860536 PMCID: PMC5579244 DOI: 10.1038/s41598-017-10532-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Accepted: 08/10/2017] [Indexed: 11/29/2022] Open
Abstract
As a significant characteristic of many biomolecules, chemical substances, and artificial nanostructures, chirality conduce different types of optical interactions with the spin angular momentum of the impinging light field. Although, chiral arrangement and spatial phase retardation are the key factors for obtaining chirality in three-dimensional (3D) structures, the origin of chirality in the feasible planar structures has not been thoroughly addressed. Here using an intuitive and simple analytical approach, called cross-hybridization model, the essence and properties of the optical chirality of individual planar nanostructures are unveiled. In order to fundamentally address this chirality in terms of circular dichroism (CD), the chiroptical response of a simple dimer composed of the lossy nanoblocks in L-shape arrangement are investigated based on the provided optical interaction and loss effects. The theoretical findings, adequately supported by the numerical calculations, reveal that chiroptical activity occurs predominantly due to handedness-dependent absorption or heating loss in a nanostructured metasurface.
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Affiliation(s)
- Atefeh Fazel Najafabadi
- Faculty of Electrical Engineering, K. N. Toosi University of Technology, Tehran, 1631714191, Iran
| | - Tavakol Pakizeh
- Faculty of Electrical Engineering, K. N. Toosi University of Technology, Tehran, 1631714191, Iran.
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27
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Petronijevic E, Centini M, Belardini A, Leahu G, Hakkarainen T, Sibilia C. Chiral near-field manipulation in Au-GaAs hybrid hexagonal nanowires. OPTICS EXPRESS 2017; 25:14148-14157. [PMID: 28789000 DOI: 10.1364/oe.25.014148] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Accepted: 04/24/2017] [Indexed: 06/07/2023]
Abstract
We demonstrate the control of enhanced chiral field distribution at the surface of hybrid metallo-dielectric nanostructures composed of self-assembled vertical hexagonal GaAs-based nanowires having three of the six sidewalls covered with Au. We show that weakly-guided modes of vertical GaAs nanowires can generate regions of high optical chirality that are further enhanced by the break of the symmetry introduced by the gold layer. Changing the angle of incidence of a linearly polarized plane wave it is possible to tailor and optimize the maps of the optical chirality in proximity of the gold plated walls. The low cost feasibility of the sample combined to the simple control by using linearly polarized light and the easy positioning of chiral molecules by functionalization of the gold plates make our proposed scheme very promising for enhanced enantioselective spectroscopy applications.
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