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Liu W, Chung K, Yu S, Lee LP. Nanoplasmonic biosensors for environmental sustainability and human health. Chem Soc Rev 2024. [PMID: 39192761 DOI: 10.1039/d3cs00941f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/29/2024]
Abstract
Monitoring the health conditions of the environment and humans is essential for ensuring human well-being, promoting global health, and achieving sustainability. Innovative biosensors are crucial in accurately monitoring health conditions, uncovering the hidden connections between the environment and human well-being, and understanding how environmental factors trigger autoimmune diseases, neurodegenerative diseases, and infectious diseases. This review evaluates the use of nanoplasmonic biosensors that can monitor environmental health and human diseases according to target analytes of different sizes and scales, providing valuable insights for preventive medicine. We begin by explaining the fundamental principles and mechanisms of nanoplasmonic biosensors. We investigate the potential of nanoplasmonic techniques for detecting various biological molecules, extracellular vesicles (EVs), pathogens, and cells. We also explore the possibility of wearable nanoplasmonic biosensors to monitor the physiological network and healthy connectivity of humans, animals, plants, and organisms. This review will guide the design of next-generation nanoplasmonic biosensors to advance sustainable global healthcare for humans, the environment, and the planet.
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Affiliation(s)
- Wenpeng Liu
- Department of Medicine, Brigham Women's Hospital, Harvard Medical School, Harvard University, Boston, MA 02115, USA.
| | - Kyungwha Chung
- Department of Medicine, Brigham Women's Hospital, Harvard Medical School, Harvard University, Boston, MA 02115, USA.
- Department of Biophysics, Institute of Quantum Biophysics, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Subin Yu
- Department of Medicine, Brigham Women's Hospital, Harvard Medical School, Harvard University, Boston, MA 02115, USA.
| | - Luke P Lee
- Department of Medicine, Brigham Women's Hospital, Harvard Medical School, Harvard University, Boston, MA 02115, USA.
- Department of Bioengineering, Department of Electrical Engineering and Computer Science, University of California at Berkeley, Berkeley, CA 94720, USA
- Department of Biophysics, Institute of Quantum Biophysics, Sungkyunkwan University, Suwon 16419, Republic of Korea
- Department of Chemistry and Nanoscience, Ewha Womans University, Seoul, 03760, Korea
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2
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Oubeniz H, Belkacem A, Mangach H, Kadic M, Bouzid A, Achaoui Y. Controlled Dispersion and Transmission-Absorption of Optical Energy through Scaled Metallic Plate Structures. MATERIALS (BASEL, SWITZERLAND) 2023; 16:6146. [PMID: 37763424 PMCID: PMC10532763 DOI: 10.3390/ma16186146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 09/03/2023] [Accepted: 09/07/2023] [Indexed: 09/29/2023]
Abstract
The dispersive feature of metals at higher frequencies has opened up a plethora of applications in plasmonics. Besides, Extraordinary Optical Transmission (EOT) reported by Ebbesen et al. in the late 90's has sparked particular interest among the scientific community through the unprecedented and singular way to steer and enhance optical energies. The purpose of the present paper is to shed light on the effect of the scaling parameter over the whole structure, to cover the range from the near-infrared to the visible, on the transmission and the absorption properties. We further bring specific attention to the dispersive properties, easily extractable from the resonance frequency of the drilled tiny slits within the structure. A perfect matching between the analytical Rigorous Coupled Wave Analysis (RCWA), and the numerical Finite Elements Method (FEM) to describe the underlying mechanisms is obtained.
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Affiliation(s)
- Hammou Oubeniz
- Laboratory of Optics, Information Processing, Mechanics, Energetics and Electronics, Department of Physics, Moulay Ismail University, Zitoune, Meknes B.P. 11201, Morocco; (H.O.); (A.B.); (Y.A.)
| | - Abdelhaq Belkacem
- Laboratory of Optics, Information Processing, Mechanics, Energetics and Electronics, Department of Physics, Moulay Ismail University, Zitoune, Meknes B.P. 11201, Morocco; (H.O.); (A.B.); (Y.A.)
| | - Hicham Mangach
- Light, Nanomaterials Nanotechnologies (L2n), CNRS-ERL 7004, Université de Technologie de Troyes, 10000 Troyes, France
| | - Muamer Kadic
- Institut FEMTO-ST, UMR 6174, CNRS, Université de Franche-Comté, 25000 Besançon, France
| | - Abdenbi Bouzid
- Laboratory of Optics, Information Processing, Mechanics, Energetics and Electronics, Department of Physics, Moulay Ismail University, Zitoune, Meknes B.P. 11201, Morocco; (H.O.); (A.B.); (Y.A.)
| | - Younes Achaoui
- Laboratory of Optics, Information Processing, Mechanics, Energetics and Electronics, Department of Physics, Moulay Ismail University, Zitoune, Meknes B.P. 11201, Morocco; (H.O.); (A.B.); (Y.A.)
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Chang X, Li H, Liu C, Zhang Z, Li M, Ruan B, Gao E. Multifrequency on-off modulation and slow light characterization of the patterned black phosphorus metamaterial based on dual plasmon-induced transparency. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA. A, OPTICS, IMAGE SCIENCE, AND VISION 2023; 40:1545-1551. [PMID: 37707110 DOI: 10.1364/josaa.488335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 07/04/2023] [Indexed: 09/15/2023]
Abstract
We present a monolayer patterned black phosphorus (BP) metamaterial for generating a tunable dual plasmon-induced transparency (PIT). We have derived the expression for the theoretical transmittance by introducing the coupled mode theory (CMT), and the calculated results of the expression highly overlap with the simulation results. The quarterly frequency synchronous switch with two different operating bands is designed by the carrier density and scattering rate on the dual PIT modulation effect. Two parameters were selected as important markers to show the performance of the optical switch: the modulation depth (MD) and the insertion loss (IL). The theoretical analysis of this structure shows that the higher modulation depth (5.45d B
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Han W, Reiter S, Schlipf J, Mai C, Spirito D, Jose J, Wenger C, Fischer IA. Strongly enhanced sensitivities of CMOS compatible plasmonic titanium nitride nanohole arrays for refractive index sensing under oblique incidence. OPTICS EXPRESS 2023; 31:17389-17407. [PMID: 37381475 DOI: 10.1364/oe.481993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Accepted: 02/28/2023] [Indexed: 06/30/2023]
Abstract
Titanium nitride (TiN) is a complementary metal-oxide-semiconductor (CMOS) compatible material with large potential for the fabrication of plasmonic structures suited for device integration. However, the comparatively large optical losses can be detrimental for application. This work reports a CMOS compatible TiN nanohole array (NHA) on top of a multilayer stack for potential use in integrated refractive index sensing with high sensitivities at wavelengths between 800 and 1500 nm. The stack, consisting of the TiN NHA on a silicon dioxide (SiO2) layer with Si as substrate (TiN NHA/SiO2/Si), is prepared using an industrial CMOS compatible process. The TiN NHA/SiO2/Si shows Fano resonances in reflectance spectra under oblique excitation, which are well reproduced by simulation using both finite difference time domain (FDTD) and rigorous coupled-wave analysis (RCWA) methods. The sensitivities derived from spectroscopic characterizations increase with the increasing incident angle and match well with the simulated sensitivities. Our systematic simulation-based investigation of the sensitivity of the TiN NHA/SiO2/Si stack under varied conditions reveals that very large sensitivities up to 2305 nm per refractive index unit (nm RIU-1) are predicted when the refractive index of superstrate is similar to that of the SiO2 layer. We analyze in detail how the interplay between plasmonic and photonic resonances such as surface plasmon polaritons (SPPs), localized surface plasmon resonances (LSPRs), Rayleigh Anomalies (RAs), and photonic microcavity modes (Fabry-Pérot resonances) contributes to this result. This work not only reveals the tunability of TiN nanostructures for plasmonic applications but also paves the way to explore efficient devices for sensing in broad conditions.
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Hajshahvaladi L, Kaatuzian H, Moghaddasi M, Danaie M. Hybridization of surface plasmons and photonic crystal resonators for high-sensitivity and high-resolution sensing applications. Sci Rep 2022; 12:21292. [PMID: 36494440 PMCID: PMC9734182 DOI: 10.1038/s41598-022-25980-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 12/07/2022] [Indexed: 12/13/2022] Open
Abstract
In this paper, an optical refractive index (RI) sensor based on a hybrid plasmonic-photonic crystal (P-PhC) is designed. In the sensor's structure, some metallic rods are embedded in a rod-type photonic crystal (PhC) structure. Numerical simulations are performed based on the finite-difference time-domain (FDTD) method. The obtained results illustrate that the localized surface plasmons (LSP) induced by metallic rods can be excited in a PhC lattice to generate a hybrid P-PhC mode. According to the results, the hybrid mode provides unique opportunities. Using metallic rods in the coupling regions between waveguides and the resonant cavity significantly increases the interaction of the optical field and analyte inside the cavity. The simulation results reveal that high sensitivity of 1672 nm/RIU and an excellent figure of merit (FoM) of 2388 RIU-1 are obtained for the proposed hybrid P-PhC sensor. These values are highest compared to the purely plasmonic and or purely PhC sensors reported in the literature. The proposed sensor could simultaneously enhance sensitivity and FoM values. Therefore, the proposed hybrid P-PhC RI sensor is a more fascinating candidate for high-sensitivity and high-resolution sensing applications at optic communication wavelengths.
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Affiliation(s)
- Leila Hajshahvaladi
- Photonics Research Lab., Electrical Engineering Department, Amirkabir University of Technology, Tehran, Iran
| | - Hassan Kaatuzian
- Photonics Research Lab., Electrical Engineering Department, Amirkabir University of Technology, Tehran, Iran
| | - Maryam Moghaddasi
- Photonics Research Lab., Electrical Engineering Department, Amirkabir University of Technology, Tehran, Iran
| | - Mohammad Danaie
- Faculty of Electrical and Computer Engineering, Semnan University, Semnan, Iran.
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Wang Y, Huang W, Lin YS, Yang BR. A tunable color filter using a hybrid metasurface composed of ZnO nanopillars and Ag nanoholes. NANOSCALE ADVANCES 2022; 4:3624-3633. [PMID: 36134352 PMCID: PMC9400519 DOI: 10.1039/d2na00286h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 07/20/2022] [Indexed: 06/16/2023]
Abstract
We propose the design of symmetrical and asymmetrical tunable color filters (TCFs) by using hybrid metasurface nanostructures in the visible wavelength range. They are composed of circular zinc oxide (ZnO) nanopillars and silver (Ag) nanoholes on a silica substrate. These TCFs exhibit ultrahigh transmission intensity over 90%, different tuning ranges, and polarization-dependent/independent characteristics. By changing the distance between the ZnO nanopillars and silica substrate, the resonant wavelength of TCFs could be tuned remarkably. Moreover, we also demonstrate the stability of TCFs under different disturbances and angles of incident light. Furthermore, the resonant wavelengths are red-shifted by increasing the ambient refraction index. TCFs exhibit great tunability and ultrahigh transmission intensity up to 100%. This design opens up an avenue to widespread optoelectronic applications, such as ultrahigh resolution color displays, high-efficiency biosensors, pressure sensors, and selective color filters.
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Affiliation(s)
- Yicheng Wang
- School of Electronics and Information Technology, Sun Yat-Sen University Guangzhou 510006 China
| | - Weikai Huang
- School of Electronics and Information Technology, Sun Yat-Sen University Guangzhou 510006 China
| | - Yu-Sheng Lin
- School of Electronics and Information Technology, Sun Yat-Sen University Guangzhou 510006 China
| | - Bo-Ru Yang
- School of Electronics and Information Technology, Sun Yat-Sen University Guangzhou 510006 China
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7
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Pan X, Tian S, Liu T, Feng B, Yuan W, Lu B, Chen Y. Spectral filter in short-wave infrareds based on a metasurface on silicon-on-insulator with polarizing bandpass. APPLIED OPTICS 2022; 61:2490-2496. [PMID: 35471313 DOI: 10.1364/ao.453891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Accepted: 02/18/2022] [Indexed: 06/14/2023]
Abstract
Spectral filters with polarimetric character in short-wave infrareds are urgently needed because of their broad applications in optic-fiber communications, polarimetric detections, and imaging. Based on our earlier progress in developing polarimetric devices in infrared wavelengths, in this work, a plasmonic-metasurface-based polarization-dependency multi-channel narrowband filter in short-wave infrareds was developed. To meet the requirement by the developing trend of polarimetric detection/spectral imaging in short-wave infrareds, a resonant cavity in the form of the Au hat/elliptical Si/SiO2 pillars/Au layer as the filters was proposed. Numerical simulations by finite-difference time-domain (FDTD) show resonant and polarized transmissions of the designed devices to infrared light in short wavelengths, and the peak positions are relevant to the structural dimensions. Optical characteristics of the filters, fabricated by electron beam lithography/dry-etch technique, agree well with the simulated behavior. To enhance the transmission efficiency to the applicable level, nanoprocessing of the filters still needs to be optimized. Nevertheless, the progress reported is promising for this new type of spectral filters based on modern metasurfaces.
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8
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Shi H, Zhu X, Zhang S, Wen G, Zheng M, Duan H. Plasmonic metal nanostructures with extremely small features: new effects, fabrication and applications. NANOSCALE ADVANCES 2021; 3:4349-4369. [PMID: 36133477 PMCID: PMC9417648 DOI: 10.1039/d1na00237f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 06/14/2021] [Indexed: 06/14/2023]
Abstract
Surface plasmons in metals promise many fascinating properties and applications in optics, sensing, photonics and nonlinear fields. Plasmonic nanostructures with extremely small features especially demonstrate amazing new effects as the feature sizes scale down to the sub-nanometer scale, such as quantum size effects, quantum tunneling, spill-out of electrons and nonlocal states etc. The unusual physical, optical and photo-electronic properties observed in metallic structures with extreme feature sizes enable their unique applications in electromagnetic field focusing, spectra enhancing, imaging, quantum photonics, etc. In this review, we focus on the new effects, fabrication and applications of plasmonic metal nanostructures with extremely small features. For simplicity and consistency, we will focus our topic on the plasmonic metal nanostructures with feature sizes of sub-nanometers. Subsequently, we discussed four main and typical plasmonic metal nanostructures with extremely small features, including: (1) ultra-sharp plasmonic metal nanotips; (2) ultra-thin plasmonic metal films; (3) ultra-small plasmonic metal particles and (4) ultra-small plasmonic metal nanogaps. Additionally, the corresponding fascinating new effects (quantum nonlinear, non-locality, quantum size effect and quantum tunneling), applications (spectral enhancement, high-order harmonic wave generation, sensing and terahertz wave detection) and reliable fabrication methods will also be discussed. We end the discussion with a brief summary and outlook of the main challenges and possible breakthroughs in the field. We hope our discussion can inspire the broader design, fabrication and application of plasmonic metal nanostructures with extremely small feature sizes in the future.
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Affiliation(s)
- Huimin Shi
- Center for Research on Leading Technology of Special Equipment, School of Mechanical and Electrical Engineering, Guangzhou University Guangzhou 510006 China
| | - Xupeng Zhu
- School of Physics Science and Technology, Lingnan Normal University Zhanjiang 524048 China
| | - Shi Zhang
- College of Mechanical and Vehicle Engineering, Hunan University Changsha 410082 China
| | - Guilin Wen
- Center for Research on Leading Technology of Special Equipment, School of Mechanical and Electrical Engineering, Guangzhou University Guangzhou 510006 China
| | | | - Huigao Duan
- College of Mechanical and Vehicle Engineering, Hunan University Changsha 410082 China
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9
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Liu T, Pan X, Feng B, Yang Z, Chen Y, Lu B. Optimization study of metallic hole arrays as the multi-channel spectral filters in long-infrared wavelengths. APPLIED OPTICS 2021; 60:3830-3835. [PMID: 33983319 DOI: 10.1364/ao.422224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 03/29/2021] [Indexed: 06/12/2023]
Abstract
The development of miniaturized multi-channel infrared filters based on plasmonic metasurfaces is attracting growing attention, driven by its potential applications in infrared imaging, photodetectors, and spectroscopy. However, the advance of such filters in long-infrared wavelengths has rarely been reported. This paper reports our recent progress on developing multi-channel spectral filters based on micrometer metallic hole arrays in the long-infrared band of 10-15 µm. The effects of structural parameters and the shapes of metallic hole arrays on filtering performance are investigated by numerical simulations with the finite-difference time-domain method and then experimentally verified by optical characterizations of fabricated filters using electron beam lithography. The transmission peaks of the filter on a zinc selenide substrate were optimized with a maximum transmittance of 63%. A comparison of the hole shapes shows that elliptical holes give rise to sharper transmission peak quality than round ones by 28%. The progress achieved in this work should be a promising step in the development of metallic hole-based spectral filters with miniaturized dimensions.
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10
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Xuan Z, Li J, Liu Q, Yi F, Wang S, Lu W. Artificial Structural Colors and Applications. Innovation (N Y) 2021; 2:100081. [PMID: 34557736 PMCID: PMC8454771 DOI: 10.1016/j.xinn.2021.100081] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Accepted: 01/13/2021] [Indexed: 10/25/2022] Open
Abstract
Structural colors are colors generated by the interaction between incident light and nanostructures. Structural colors have been studied for decades due to their promising advantages of long-term stability and environmentally friendly properties compared with conventional pigments and dyes. Previous studies have demonstrated many artificial structural colors inspired by naturally generated colors from plants and animals. Moreover, many strategies consisting of different principles have been reported to achieve dynamically tunable structural colors. Furthermore, the artificial structural colors can have multiple functions besides decoration, such as absorbing solar energy, anti-counterfeiting, and information encryption. In the present work, we reviewed the typical artificial structural colors generated by multilayer films, photonic crystals, and metasurfaces according to the type of structures, and discussed the approaches to achieve dynamically tunable structural colors.
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Affiliation(s)
- Zhiyi Xuan
- State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China.,Shanghai Engineering Research Center of Energy-saving Coatings, Shanghai 200083, China.,University of Chinese Academy of Sciences, Beijing, 100049, China.,School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Junyu Li
- School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Qingquan Liu
- State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China.,Shanghai Engineering Research Center of Energy-saving Coatings, Shanghai 200083, China.,University of Chinese Academy of Sciences, Beijing, 100049, China.,School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Fei Yi
- School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Shaowei Wang
- State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China.,Shanghai Engineering Research Center of Energy-saving Coatings, Shanghai 200083, China.,University of Chinese Academy of Sciences, Beijing, 100049, China.,Shanghai Research Center for Quantum Sciences, Shanghai 201315, China
| | - Wei Lu
- State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China.,Shanghai Engineering Research Center of Energy-saving Coatings, Shanghai 200083, China.,University of Chinese Academy of Sciences, Beijing, 100049, China.,School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China.,Shanghai Research Center for Quantum Sciences, Shanghai 201315, China
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Yi Z, Li J, Lin J, Qin F, Chen X, Yao W, Liu Z, Cheng S, Wu P, Li H. Broadband polarization-insensitive and wide-angle solar energy absorber based on tungsten ring-disc array. NANOSCALE 2020; 12:23077-23083. [PMID: 33179661 DOI: 10.1039/d0nr04502k] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Nowadays, solar energy is considered one of the most clean energy sources. In addition, the data from the literature tell us that its main radiation bandwidth is approximately 295-2500 nm. In this work, we proposed a novel kind of broadband solar energy absorber based on tungsten (W) to achieve broadband absorption of solar energy. A four-layer ring-disk structure (SiO2-SiO2-W) is employed in our design. A finite-difference time-domain (FDTD) simulation was used to ascertain the absorption performance of the absorber. The results demonstrate that a broadband solar energy absorption was realized, the bandwidth is of 1530 nm with an absorption efficiency of more than 90%, and an absorption efficiency of 97% was achieved in this region. The absorption spectra can be tuned through changing the structural and geometric parameters. Moreover, the absorber has excellent polarization independence and can be used under incident angles from 0° to 60°. The proposed solar energy absorber is simple to fabricate, and can be used for photothermal conversion, solar energy harvesting and utilization.
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Affiliation(s)
- Zao Yi
- Joint Laboratory for Extreme Conditions Matter Properties, Southwest University of Science and Technology, Mianyang 621010, China.
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12
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Liu Q, Liu Y, Shao Y, Han G, Hao Y. Enhanced transmission through a Si-InSb-Si bimaterial subwavelength grating with slits at the terahertz range. APPLIED OPTICS 2020; 59:10457-10463. [PMID: 33361979 DOI: 10.1364/ao.405211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 10/25/2020] [Indexed: 06/12/2023]
Abstract
Two groups of grating structures with subwavelength slits, composed of different materials are investigated to realize an extraordinary optical transmission (EOT) phenomenon. We find that the transmittance of a InSb grating at the frequencies corresponding to surface plasmon (SP) excitation is almost zero, which verifies the negative role of SPPs in transmission anomalies. And optical characteristics of these bimaterial grating structures are thoroughly analyzed by the transmittance spectrum and optical field intensity. In addition, the greatly enhanced transmission was achieved by changing the temperature, doping concentration, and the geometrical parameters of the InSb-Si-InSb bimaterial grating structure, and the optimized transmission can reach almost 94%. Besides, it is verified that the position of the peaks is strongly dependent on the depth of the slits. Last, we demonstrate the transmission of the InSb-Si-InSb bimaterial grating is higher than its counterparts, and the collimated beaming effect is also realized through it. These features make this structure an excellent candidate for plasmonic components in all optical and optoelectronic fields.
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13
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Xu H, He Z, Chen Z, Nie G, Li H. Optical Fermi level-tuned plasmonic coupling in a grating-assisted graphene nanoribbon system. OPTICS EXPRESS 2020; 28:25767-25777. [PMID: 32906861 DOI: 10.1364/oe.401694] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 08/07/2020] [Indexed: 06/11/2023]
Abstract
A novel graphene-based grating-coupled metamaterial structure is proposed, and the optical response of this structure can be obviously controlled by the Fermi level, which is theoretically regulated by the electric field of an applied voltage. The upper graphene monolayer can be intensely excited with the aid of periodic grating and thus it can be considered a bright mode. Meanwhile, the lower graphene monolayer cannot be directly excited, but it could be indirectly activated by the help of bright mode. The plasmonic polaritons resulting from the light-graphene interaction resonance can lead to a destructive interference effect, leading to a plasmonic induced transparency. This structure has a simple construction and retains the integrity of graphene. In the meantime, it can achieve a good tuning effect by adjusting the voltage regulation of microstructure array and it can obtain an outstanding reflection efficiency. Thus, this graphene-based metamaterial structure with these properties is very suitable for the plasmonic optical reflector. In contacting with the characteristics of material, the group delay of this device can reach to 0.3ps, which can well match the slow light performance. Therefore, the device is expected to make some contribution in optical reflection and slow light devices.
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14
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Wang Y, Chong HB, Zhang Z, Zhao Y. Large-Area Fabrication of Complex Nanohole Arrays with Highly Tunable Plasmonic Properties. ACS APPLIED MATERIALS & INTERFACES 2020; 12:37435-37443. [PMID: 32698576 DOI: 10.1021/acsami.0c06936] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
By combining nanosphere lithography with oblique angle deposition, large-area asymmetric compound Ag nanohole arrays with nanorods inside the hole were patterned on substrates. The technique enabled the production of complex nanohole arrays with controlled hole diameter, thickness, and rod structure inside the hole. The compound asymmetric Ag nanohole structures showed strong polarization-dependent optical properties, and a new extraordinary optical transmission (EOT) mode with tunable resonance wavelength at the near-IR region was observed. The transmission at the new EOT wavelength region can increase from 27% of nanohole to 69% of the compound structure, and these structures can achieve a refractive index sensitivity as high as 847 nm RIU-1. The tunable EOT wavelength and strong polarization-dependent optical properties make the structure ideal for ultrathin optical filters, polarizers, surface-enhanced spectroscopies, etc.
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Affiliation(s)
- Yanfeng Wang
- Key Laboratory of Advanced Materials (MOE) and School of Materials Science and Engineering, Tsinghua University, Beijing 100084, P. R. China
- Department of Physics and Astronomy, University of Georgia, Athens, Georgia 30602, United States
| | - Harrison B Chong
- Department of Physics and Astronomy, University of Georgia, Athens, Georgia 30602, United States
| | - Zhengjun Zhang
- Key Laboratory of Advanced Materials (MOE) and School of Materials Science and Engineering, Tsinghua University, Beijing 100084, P. R. China
| | - Yiping Zhao
- Department of Physics and Astronomy, University of Georgia, Athens, Georgia 30602, United States
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15
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Chen Z, Zhang S, Chen Y, Liu Y, Li P, Wang Z, Zhu X, Bi K, Duan H. Double Fano resonances in hybrid disk/rod artificial plasmonic molecules based on dipole-quadrupole coupling. NANOSCALE 2020; 12:9776-9785. [PMID: 32324182 DOI: 10.1039/d0nr00461h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Fano resonance can be achieved by the destructive interference between a superradiant bright mode and a subradiant dark mode. A variety of artificial plasmonic oligomers have been fabricated to generate Fano resonance for its extensive applications. However, the Fano resonance in plasmonic oligomer systems comes from the interaction of all metal particles, which greatly limits the tunability of the Fano resonance. Besides, only a single Fano resonance is supported by many existing plasmonic oligomers, while multiple Fano resonances mostly occur in complex and multilayer structures, whose fabrication is greatly challenging. Here, a simple asymmetric plasmonic molecule consisting of a central metal disk and two side-coupled parallel metal rods is demonstrated. The simulation and experimental results clearly show that double Fano resonances appear in the transmission spectrum. In addition, the two Fano peaks can be independently tuned and single/double Fano peak switching can be achieved by changing one rod length or the gap distances between the rods and the disk. The modulation method is simple and effective, which greatly increases the tunability of the structure. The proposed asymmetric artificial plasmonic molecule can have applications in multi-channel optical switches, filters and biosensors. Moreover, the controllable plasmonic field intensity in the gap between the disk and rods also provides a new control means for plasmon-induced photocatalytic reactions and biosynthesis.
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Affiliation(s)
- Zhiquan Chen
- State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, College of Mechanical and Vehicle Engineering, Hunan University, Changsha 410082, People's Republic of China. and School of Mathematics and Statistics, Hunan University of Technology and Business, Changsha 410205, People's Republic of China
| | - Shi Zhang
- State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, College of Mechanical and Vehicle Engineering, Hunan University, Changsha 410082, People's Republic of China.
| | - Yiqin Chen
- State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, College of Mechanical and Vehicle Engineering, Hunan University, Changsha 410082, People's Republic of China.
| | - Yanjun Liu
- Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen, 518055, People's Republic of China
| | - Ping Li
- State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, College of Mechanical and Vehicle Engineering, Hunan University, Changsha 410082, People's Republic of China.
| | - Zhaolong Wang
- State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, College of Mechanical and Vehicle Engineering, Hunan University, Changsha 410082, People's Republic of China.
| | - Xupeng Zhu
- School of Physics Science and Technology, Lingnan Normal University, Zhanjiang 524048, People's Republic of China
| | - Kaixi Bi
- Science and Technology on Electronic Test and Measurement Laboratory, School of Instrument and Electronics, North University of China, Taiyuan 030051, People's Republic of China
| | - Huigao Duan
- State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, College of Mechanical and Vehicle Engineering, Hunan University, Changsha 410082, People's Republic of China.
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16
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He Z, Xue W, Cui W, Li C, Li Z, Pu L, Feng J, Xiao X, Wang X, Li G. Tunable Fano Resonance and Enhanced Sensing in a Simple Au/TiO 2 Hybrid Metasurface. NANOMATERIALS 2020; 10:nano10040687. [PMID: 32260584 PMCID: PMC7221975 DOI: 10.3390/nano10040687] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 04/01/2020] [Accepted: 04/03/2020] [Indexed: 11/29/2022]
Abstract
We investigate Fano resonances and sensing enhancements in a simple Au/TiO2 hybrid metasurface through the finite-different time-domain (FDTD) simulation and coupled mode theory (CMT) analysis. The results show that the Fano resonance in the proposed simple metasurface is caused by the destructive interaction between the surface plasmon polaritons (SPPs) and the local surface plasmon resonances (LSPRs), the quality factor and dephasing time for the Fano resonance can be effectively tuned by the thickness of Au and TiO2 structures, the length of each unit in x and y directions, as well as the structural defect. In particular, single Fano resonance splits into multiple Fano resonances caused by a stub-shaped defect, and multiple Fano resonances can be tuned by the size and position of the stub-shaped defect. Moreover, we also find that the sensitivity in the Au/TiO2 hybrid metasurface with the stub-shaped defect can reach up to 330 nm/RIU and 535 nm/RIU at the Fano resonance 1 and Fano resonance 2, which is more than three times as sensitive in the Au/TiO2 hybrid metasurface without the stub-shaped defect, and also higher than that in the TiO2 metasurface reported before. These results may provide further understanding of Fano resonances and guidance for designing ultra-high sensitive refractive index sensors.
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Affiliation(s)
- Zhihui He
- Correspondence: ; Tel./Fax: +86-091-1265-0504
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18
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Kim Y, Moon K, Lee YJ, Hong S, Kwon SH. Metal Slot Color Filter Based on Thin Air Slots on Silver Block Array. NANOMATERIALS 2019; 9:nano9060912. [PMID: 31242586 PMCID: PMC6631205 DOI: 10.3390/nano9060912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 06/17/2019] [Accepted: 06/21/2019] [Indexed: 11/16/2022]
Abstract
The human eye perceives the color of visible light depending on the spectrum of the incident light. Hence, the ability of color expression is very important in display devices. For practical applications, the transmitted color filter requires high transmittance and vivid colors, covering full standard default color spaces (sRGB). In this paper, we propose a color filter with a silver block array on a silica substrate structure with nanoscale air slots where strong transmission is observed through the slots between silver blocks. We investigated the transmitted color by simulating the transmission spectra as functions of various structure parameters. The proposed structure with an extremely small pixel size of less than 300 nm covers 90% of sRGB color depending on the structure and has a narrow angular distribution of transmitted light.
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Affiliation(s)
- Youngsoo Kim
- Department of Physics, Chung-Ang University, Seoul 06974, Korea.
| | - Kihwan Moon
- Department of Physics, Chung-Ang University, Seoul 06974, Korea.
| | - Young Jin Lee
- Department of Physics, Chung-Ang University, Seoul 06974, Korea.
| | - Seokhyeon Hong
- Department of Physics, Chung-Ang University, Seoul 06974, Korea.
| | - Soon-Hong Kwon
- Department of Physics, Chung-Ang University, Seoul 06974, Korea.
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19
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Xiong C, Li H, Xu H, Zhao M, Zhang B, Liu C, Wu K. Coupling effects in single-mode and multimode resonator-coupled system. OPTICS EXPRESS 2019; 27:17718-17728. [PMID: 31252728 DOI: 10.1364/oe.27.017718] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 05/27/2019] [Indexed: 06/09/2023]
Abstract
We have proposed a simple metal-dielectric-metal (MDM) waveguide system side-coupled with single-mode and multimode resonators. This proposed structure can achieve a typical dual plasmon-induced transparency (PIT) effect in the transmission spectra. The two PIT peaks exhibit opposite evolution tendencies with the increase in the depth of stubs. A multimode-coupled mode theory (M-CMT), confirmed by simulated results, is originally introduced to investigate the coupling effects of the proposed structure. Compared to the previous reported multichannel filters, the proposed structure includes obvious advantages, such as structural simplicity and ease of fabrication. In addition, the sensing characteristics of the proposed structure based on PIT effects are discussed numerically. The results demonstrate that the proposed structure is suitable for applications in multichannel filters, optical switches, and sensors.
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