1
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Xu J, Zhong C, Zhuang S, Qian C, Jiang Y, Pishehvar A, Han X, Jin D, Jornet JM, Zhen B, Hu J, Jiang L, Zhang X. Slow-Wave Hybrid Magnonics. PHYSICAL REVIEW LETTERS 2024; 132:116701. [PMID: 38563939 DOI: 10.1103/physrevlett.132.116701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 12/14/2023] [Accepted: 02/08/2024] [Indexed: 04/04/2024]
Abstract
Cavity magnonics is an emerging research area focusing on the coupling between magnons and photons. Despite its great potential for coherent information processing, it has been long restricted by the narrow interaction bandwidth. In this Letter, we theoretically propose and experimentally demonstrate a novel approach to achieve broadband photon-magnon coupling by adopting slow waves on engineered microwave waveguides. To the best of our knowledge, this is the first time that slow wave is combined with hybrid magnonics. Its unique properties promise great potentials for both fundamental research and practical applications, for instance, by deepening our understanding of the light-matter interaction in the slow wave regime and providing high-efficiency spin wave transducers. The device concept can be extended to other systems such as optomagnonics and magnomechanics, opening up new directions for hybrid magnonics.
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Affiliation(s)
- Jing Xu
- Center for Nanoscale Materials, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - Changchun Zhong
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, USA
| | - Shihao Zhuang
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - Chen Qian
- Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
| | - Yu Jiang
- Department of Electrical and Computer Engineering, Northeastern University, Boston, Massachusetts 02115, USA
| | - Amin Pishehvar
- Department of Electrical and Computer Engineering, Northeastern University, Boston, Massachusetts 02115, USA
| | - Xu Han
- Center for Nanoscale Materials, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - Dafei Jin
- Center for Nanoscale Materials, Argonne National Laboratory, Lemont, Illinois 60439, USA
- Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - Josep M Jornet
- Department of Electrical and Computer Engineering, Northeastern University, Boston, Massachusetts 02115, USA
| | - Bo Zhen
- Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
| | - Jiamian Hu
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - Liang Jiang
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, USA
| | - Xufeng Zhang
- Department of Electrical and Computer Engineering, Northeastern University, Boston, Massachusetts 02115, USA
- Department of Physics, Northeastern University, Boston, Massachusetts 02115, USA
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2
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Najafy V, Abbasi-Arand B, Hesari-Shermeh M. A semi-analytical method for characterization of fractal spoof surface plasmon polaritons with a transfer matrix and bloch theory. Sci Rep 2023; 13:15055. [PMID: 37699962 PMCID: PMC10497514 DOI: 10.1038/s41598-023-41050-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 08/21/2023] [Indexed: 09/14/2023] Open
Abstract
In this paper, a semi-analytical approach is introduced to analyze a spoof plasmonic structure, with an arbitrary geometry. This approach is based on a combination of techniques that employ a full-wave simulator and the Bloch theorem. By applying periodic boundary conditions, the real and imaginary parts of the equation obtained from the equivalent network have been calculated. To show the accuracy and validity of this proposed approach, a complementary Minkowski fractal SSPP unit cell has been designed and analyzed, and this has been used in a surface plasmonic transmission line. The results of our proposed method have been compared to measured results, and the simulated and measured results showed that the SSPP transmission line possesses high performance, from 1.45 to 5 GHz.
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Affiliation(s)
- Vahid Najafy
- Department of Electrical and Computer Engineering, Tarbiat Modares University, Tehran, 14115-194, Iran
| | - Bijan Abbasi-Arand
- Department of Electrical and Computer Engineering, Tarbiat Modares University, Tehran, 14115-194, Iran.
| | - Maryam Hesari-Shermeh
- Department of Electrical and Computer Engineering, Tarbiat Modares University, Tehran, 14115-194, Iran
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3
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Miyata K, Toyoshima L, Iijima K, Goto Y, Shohmitsu Y, Wada T, Nakaoka T. Terahertz bandpass filter with Babinet complementary metamaterial mirrors and silicon subwavelength structure. OPTICS EXPRESS 2023; 31:23507-23517. [PMID: 37475432 DOI: 10.1364/oe.495232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 06/07/2023] [Indexed: 07/22/2023]
Abstract
We fabricated a rigid bandpass filter with a broad far-infrared wavelength range of high transmission using a silicon subwavelength structure with a Babinet complementary metamaterial half-mirror pair, despite its apparent light-blocking structure. The rigid one-piece filter was produced by a simple process involving photolithography, dry etching, and deposition, each performed only once. The transmission principle relies on the Fabry-Perot resonance with a metamaterial half-mirror pair that exhibits extraordinary optical transmission due to spoof surface plasmon polaritons. The transmission center wavelength was successfully predicted by the basic equation of Fabry-Perot resonance with an effective medium approximation. In contrast, a narrower bandwidth and a lower minimum transmittance than those predicted from the basic equation were provided by the subwavelength Si structure between the metamaterial mirrors, resulting in enhanced bandpass filter characteristics.
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4
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Shen K, Deng WM, Mo HC, Shi FL, Ma F, Chen XD, Dong JW. Observation of robust edge mode and in-gap corner mode in Kagome surface-wave photonic crystals. OPTICS LETTERS 2023; 48:2825-2828. [PMID: 37262220 DOI: 10.1364/ol.488612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 04/21/2023] [Indexed: 06/03/2023]
Abstract
Recent theory has demonstrated that Kagome photonic crystals (PCs) support first-order and second-order topological phenomena. Here, we extend the topological physics of the Kagome lattice to surface electromagnetic waves and experimentally show a Kagome surface-wave PC. Under the protection of first-order and second-order topologies, both robust edge modes and in-gap corner modes are observed. The robust transport of edge modes is demonstrated by high transmission through the waveguide with a sharp bend. The localized corner mode is found at the corner with one isolated rod when a triangle-shaped sample is constructed. Our work not only shows a platform to mimic the topological physics in classical wave systems, but also offers a potential application in designing high-performance photonic devices.
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Li Y, Xu S, Zhang Z, Yang Y, Xie X, Ye W, Liu F, Xue H, Jing L, Wang Z, Chen QD, Sun HB, Li E, Chen H, Gao F. Polarization-Orthogonal Nondegenerate Plasmonic Higher-Order Topological States. PHYSICAL REVIEW LETTERS 2023; 130:213603. [PMID: 37295078 DOI: 10.1103/physrevlett.130.213603] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Accepted: 04/19/2023] [Indexed: 06/12/2023]
Abstract
Photonic topological states, providing light-manipulation approaches in robust manners, have attracted intense attention. Connecting photonic topological states with far-field degrees of freedom (d.o.f.) has given rise to fruitful phenomena. Recently emerged higher-order topological insulators (HOTIs), hosting boundary states two or more dimensions lower than those of bulk, offer new paradigms to localize or transport light topologically in extended dimensionalities. However, photonic HOTIs have not been related to d.o.f. of radiation fields yet. Here, we report the observation of polarization-orthogonal second-order topological corner states at different frequencies on a designer-plasmonic kagome metasurface in the far field. Such phenomenon stands on two mechanisms, i.e., projecting the far-field polarizations to the intrinsic parity d.o.f. of lattice modes and the parity splitting of the plasmonic corner states in spectra. We theoretically and numerically show that the parity splitting originates from the underlying interorbital coupling. Both near-field and far-field experiments verify the polarization-orthogonal nondegenerate second-order topological corner states. These results promise applications in robust optical single photon emitters and multiplexed photonic devices.
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Affiliation(s)
- Yuanzhen Li
- Interdisciplinary Center for Quantum Information, State Key Laboratory of Extreme Photonics and Instrumentation, ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou 310027, China
- International Joint Innovation Center, The Electromagnetics Academy at Zhejiang University, Zhejiang University, Haining 314400, China
- Key Laboratory of Advanced Micro/Nano Electronic Devices & Smart Systems of Zhejiang, Jinhua Institute of Zhejiang University, Zhejiang University, Jinhua 321099, China
| | - Su Xu
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Zijian Zhang
- Interdisciplinary Center for Quantum Information, State Key Laboratory of Extreme Photonics and Instrumentation, ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou 310027, China
- International Joint Innovation Center, The Electromagnetics Academy at Zhejiang University, Zhejiang University, Haining 314400, China
- Key Laboratory of Advanced Micro/Nano Electronic Devices & Smart Systems of Zhejiang, Jinhua Institute of Zhejiang University, Zhejiang University, Jinhua 321099, China
| | - Yumeng Yang
- Interdisciplinary Center for Quantum Information, State Key Laboratory of Extreme Photonics and Instrumentation, ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou 310027, China
- International Joint Innovation Center, The Electromagnetics Academy at Zhejiang University, Zhejiang University, Haining 314400, China
- Key Laboratory of Advanced Micro/Nano Electronic Devices & Smart Systems of Zhejiang, Jinhua Institute of Zhejiang University, Zhejiang University, Jinhua 321099, China
| | - Xinrong Xie
- Interdisciplinary Center for Quantum Information, State Key Laboratory of Extreme Photonics and Instrumentation, ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou 310027, China
- International Joint Innovation Center, The Electromagnetics Academy at Zhejiang University, Zhejiang University, Haining 314400, China
- Key Laboratory of Advanced Micro/Nano Electronic Devices & Smart Systems of Zhejiang, Jinhua Institute of Zhejiang University, Zhejiang University, Jinhua 321099, China
| | - Wenzheng Ye
- Interdisciplinary Center for Quantum Information, State Key Laboratory of Extreme Photonics and Instrumentation, ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou 310027, China
- International Joint Innovation Center, The Electromagnetics Academy at Zhejiang University, Zhejiang University, Haining 314400, China
| | - Feng Liu
- Interdisciplinary Center for Quantum Information, State Key Laboratory of Extreme Photonics and Instrumentation, ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou 310027, China
| | - Haoran Xue
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Liqiao Jing
- Interdisciplinary Center for Quantum Information, State Key Laboratory of Extreme Photonics and Instrumentation, ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou 310027, China
- International Joint Innovation Center, The Electromagnetics Academy at Zhejiang University, Zhejiang University, Haining 314400, China
- Key Laboratory of Advanced Micro/Nano Electronic Devices & Smart Systems of Zhejiang, Jinhua Institute of Zhejiang University, Zhejiang University, Jinhua 321099, China
| | - Zuojia Wang
- Interdisciplinary Center for Quantum Information, State Key Laboratory of Extreme Photonics and Instrumentation, ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou 310027, China
- International Joint Innovation Center, The Electromagnetics Academy at Zhejiang University, Zhejiang University, Haining 314400, China
- Key Laboratory of Advanced Micro/Nano Electronic Devices & Smart Systems of Zhejiang, Jinhua Institute of Zhejiang University, Zhejiang University, Jinhua 321099, China
| | - Qi-Dai Chen
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Hong-Bo Sun
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China
- State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instrument, Tsinghua University, Haidian, Beijing 100084, China
| | - Erping Li
- Interdisciplinary Center for Quantum Information, State Key Laboratory of Extreme Photonics and Instrumentation, ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou 310027, China
- International Joint Innovation Center, The Electromagnetics Academy at Zhejiang University, Zhejiang University, Haining 314400, China
| | - Hongsheng Chen
- Interdisciplinary Center for Quantum Information, State Key Laboratory of Extreme Photonics and Instrumentation, ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou 310027, China
- International Joint Innovation Center, The Electromagnetics Academy at Zhejiang University, Zhejiang University, Haining 314400, China
- Key Laboratory of Advanced Micro/Nano Electronic Devices & Smart Systems of Zhejiang, Jinhua Institute of Zhejiang University, Zhejiang University, Jinhua 321099, China
- Shaoxing Institute of Zhejiang University, Zhejiang University, Shaoxing 312000, China
| | - Fei Gao
- Interdisciplinary Center for Quantum Information, State Key Laboratory of Extreme Photonics and Instrumentation, ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou 310027, China
- International Joint Innovation Center, The Electromagnetics Academy at Zhejiang University, Zhejiang University, Haining 314400, China
- Key Laboratory of Advanced Micro/Nano Electronic Devices & Smart Systems of Zhejiang, Jinhua Institute of Zhejiang University, Zhejiang University, Jinhua 321099, China
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6
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Wu J, Yang X, Su P, Yu W, Zheng L. Defects Detection Method Based on Programmable Spoof Surface Plasmon Polaritons in Non-Metallic Composites. MICROMACHINES 2023; 14:756. [PMID: 37420989 DOI: 10.3390/mi14040756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 03/25/2023] [Accepted: 03/27/2023] [Indexed: 07/09/2023]
Abstract
Microwave nondestructive testing (NDT) offers promising application prospects due to its advantages of non-contact inspection in detecting defects in non-metallic composites. However, the detection sensitivity of this technology is generally affected by the lift-off effect. To reduce this effect and highly concentrate electromagnetic fields on defects, a defect detection method using scanning instead of moving sensors in the microwave frequency range was proposed. Additionally, a novel sensor based on the programmable spoof surface plasmon polaritons (SSPPs) was designed for non-destructive detection in non-metallic composites. The unit structure of the sensor was made up of a metallic strip and a split ring resonator (SRR). A varactor diode was loaded between the inner and outer rings of the SRR, and by changing the capacitance of this diode using electronic scanning, the field concentration phenomenon of the SSPPs sensor can be moved along a specific direction for defect detection. By using this proposed method and sensor, the location of a defect can be analyzed without moving the sensor. The experimental results demonstrated that the proposed method and designed SSPPs sensor can be effectively applied in detecting defects in non-metallic materials.
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Affiliation(s)
- Jieping Wu
- College of Electronics and Information Engineering, Sichuan University, Chengdu 610065, China
- School of Automation and Electrical Engineering, Chengdu Technological University, Chengdu 611730, China
| | - Xiaoqing Yang
- College of Electronics and Information Engineering, Sichuan University, Chengdu 610065, China
| | - Piqiang Su
- College of Electronics and Information Engineering, Sichuan University, Chengdu 610065, China
| | - Wenping Yu
- School of Automation and Electrical Engineering, Chengdu Technological University, Chengdu 611730, China
| | - Li Zheng
- School of Automation and Electrical Engineering, Chengdu Technological University, Chengdu 611730, China
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7
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Zhao R, Feng Y, Ling H, Zou X, Wang M, Lu G. Enhanced Terahertz Fingerprint Sensing Mechanism Study of Tiny Molecules Based on Tunable Spoof Surface Plasmon Polaritons on Composite Periodic Groove Structures. SENSORS (BASEL, SWITZERLAND) 2023; 23:2496. [PMID: 36904706 PMCID: PMC10007521 DOI: 10.3390/s23052496] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 02/14/2023] [Accepted: 02/20/2023] [Indexed: 06/18/2023]
Abstract
Highly sensitive detection of enhanced terahertz (THz) fingerprint absorption spectrum of trace-amount tiny molecules is essential for biosensing. THz surface plasmon resonance (SPR) sensors based on Otto prism-coupled attenuated total reflection (OPC-ATR) configuration have been recognized as a promising technology in biomedical detection applications. However, THz-SPR sensors based on the traditional OPC-ATR configuration have long been associated with low sensitivity, poor tunability, low refractive index resolution, large sample consumption, and lack of fingerprint analysis. Here, we propose an enhanced tunable high-sensitivity and trace-amount THz-SPR biosensor based on a composite periodic groove structure (CPGS). The elaborate geometric design of the spoof surface plasmon polaritons (SSPPs) metasurface increases the number of electromagnetic hot spots on the surface of the CPGS, improves the near-field enhancement effect of SSPPs, and enhances the interaction between THz wave and the sample. The results show that the sensitivity (S), figure of merit (FOM) and Q-factor (Q) can be increased to 6.55 THz/RIU, 4234.06 1/RIU and 629.28, respectively, when the refractive index range of the sample to measure is between 1 and 1.05 with the resolution 1.54×10-5 RIU. Moreover, by making use of the high structural tunability of CPGS, the best sensitivity (SPR frequency shift) can be obtained when the resonant frequency of the metamaterial approaches the biological molecule oscillation. These advantages make CPGS a strong candidate for the high-sensitivity detection of trace-amount biochemical samples.
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Affiliation(s)
- Ruiqi Zhao
- Shandong Key Laboratory of Low-Altitude Airspace Surveillance Network Technology, QILU Aerospace Information Research Institute (AIR), Chinese Academy of Sciences (CAS), Jinan 250132, China
| | - Yu Feng
- Shandong Key Laboratory of Low-Altitude Airspace Surveillance Network Technology, QILU Aerospace Information Research Institute (AIR), Chinese Academy of Sciences (CAS), Jinan 250132, China
| | - Haotian Ling
- Shandong Key Laboratory of Low-Altitude Airspace Surveillance Network Technology, QILU Aerospace Information Research Institute (AIR), Chinese Academy of Sciences (CAS), Jinan 250132, China
| | - Xudong Zou
- Shandong Key Laboratory of Low-Altitude Airspace Surveillance Network Technology, QILU Aerospace Information Research Institute (AIR), Chinese Academy of Sciences (CAS), Jinan 250132, China
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute (AIR), Chinese Academy of Sciences (CAS), Beijing 100190, China
| | - Meng Wang
- School of Integrated Circuit Science and Engineering, Tianjin University of Technology, Tianjin 300384, China
| | - Guizhen Lu
- State Key Laboratory of Media Convergence and Communication, Communication University of China (CUC), Beijing 100039, China
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8
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Xu Z, Kong X, Chang J, Sievenpiper DF, Cui TJ. Topological Flat Bands in Self-Complementary Plasmonic Metasurfaces. PHYSICAL REVIEW LETTERS 2022; 129:253001. [PMID: 36608243 DOI: 10.1103/physrevlett.129.253001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 10/09/2022] [Accepted: 11/15/2022] [Indexed: 06/17/2023]
Abstract
Photonics can be confined in real space with dispersion vanishing in the momentum space due to destructive interference. In this Letter, we report the experimental realization of flat bands with nontrivial topology in a self-complementary plasmonic metasurface. The band diagram and compact localized states are measured. In these nontrivial band gaps, we observe the topological edge states by near-field measurements. Furthermore, we propose a digitalized metasurface by loading controllable diodes with C_{3} symmetry in every unit cell. By pumping a digital signal into the metasurface, we investigate the interaction between incident waves and the dynamic metasurface. Experimental results indicate that compact localized states in the nontrivial flat band could enhance the wave-matter interactions to convert more incident waves to time-modulated harmonic photonics. Although our experiments are conducted in the microwave regime, extending the related concepts into the optical plasmonic systems is feasible. Our findings pave an avenue toward planar integrated photonic devices with nontrivial flat bands and exotic transmission phenomena.
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Affiliation(s)
- Zhixia Xu
- State Key Laboratory of Millimeter Waves, Southeast University, Nanjing 210096, China
- School of Information Science and Technology, Dalian Maritime University, Dalian 116026, China
| | - Xianghong Kong
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore 117583, Singapore
| | - Jie Chang
- School of Information Science and Technology, Dalian Maritime University, Dalian 116026, China
| | - Daniel F Sievenpiper
- Electrical and Computer Engineering Department, University of California San Diego, San Diego, California 92093, USA
| | - Tie Jun Cui
- State Key Laboratory of Millimeter Waves, Southeast University, Nanjing 210096, China
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9
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Yang Y, Xie X, Li Y, Zhang Z, Peng Y, Wang C, Li E, Li Y, Chen H, Gao F. Radiative anti-parity-time plasmonics. Nat Commun 2022; 13:7678. [PMID: 36509769 PMCID: PMC9744817 DOI: 10.1038/s41467-022-35447-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 12/02/2022] [Indexed: 12/15/2022] Open
Abstract
Space and guided electromagnetic waves, as widely known, are two crucial cornerstones in extensive wireless and integrated applications respectively. To harness the two cornerstones, radiative and integrated devices are usually developed in parallel based on the same physical principles. An emerging mechanism, i.e., anti-parity-time (APT) symmetry originated from non-Hermitian quantum mechanics, has led to fruitful phenomena in harnessing guided waves. However, it is still absent in harnessing space waves. Here, we propose a radiative plasmonic APT design to harness space waves, and experimentally demonstrate it with subwavelength designer-plasmonic structures. We observe two exotic phenomena unrealized previously. Rotating polarizations of incident space waves, we realize polarization-controlled APT phase transition. Tuning incidence angles, we observe multi-stage APT phase transition in higher-order APT systems, constructed by using the scalability of leaky-wave couplings. Our scheme shows promise in demonstrating novel APT physics, and constructing APT-symmetry-empowered radiative devices.
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Affiliation(s)
- Yumeng Yang
- grid.13402.340000 0004 1759 700XInterdisciplinary Center for Quantum Information, State Key Laboratory of Extreme Photonics and Instrumentation, ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou, 310027 China ,grid.13402.340000 0004 1759 700XInternational Joint Innovation Center, The Electromagnetics Academy at Zhejiang University, Zhejiang University, Haining, 314400 China ,grid.13402.340000 0004 1759 700XKey Lab. of Advanced Micro/Nano Electronic Devices & Smart Systems of Zhejiang, Jinhua Institute of Zhejiang University, Zhejiang University, Jinhua, 321099 China ,grid.13402.340000 0004 1759 700XShaoxing Institute of Zhejiang University, Zhejiang University, Shaoxing, 312000 China
| | - Xinrong Xie
- grid.13402.340000 0004 1759 700XInterdisciplinary Center for Quantum Information, State Key Laboratory of Extreme Photonics and Instrumentation, ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou, 310027 China ,grid.13402.340000 0004 1759 700XInternational Joint Innovation Center, The Electromagnetics Academy at Zhejiang University, Zhejiang University, Haining, 314400 China ,grid.13402.340000 0004 1759 700XKey Lab. of Advanced Micro/Nano Electronic Devices & Smart Systems of Zhejiang, Jinhua Institute of Zhejiang University, Zhejiang University, Jinhua, 321099 China ,grid.13402.340000 0004 1759 700XShaoxing Institute of Zhejiang University, Zhejiang University, Shaoxing, 312000 China
| | - Yuanzhen Li
- grid.13402.340000 0004 1759 700XInterdisciplinary Center for Quantum Information, State Key Laboratory of Extreme Photonics and Instrumentation, ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou, 310027 China ,grid.13402.340000 0004 1759 700XInternational Joint Innovation Center, The Electromagnetics Academy at Zhejiang University, Zhejiang University, Haining, 314400 China ,grid.13402.340000 0004 1759 700XKey Lab. of Advanced Micro/Nano Electronic Devices & Smart Systems of Zhejiang, Jinhua Institute of Zhejiang University, Zhejiang University, Jinhua, 321099 China ,grid.13402.340000 0004 1759 700XShaoxing Institute of Zhejiang University, Zhejiang University, Shaoxing, 312000 China
| | - Zijian Zhang
- grid.13402.340000 0004 1759 700XInterdisciplinary Center for Quantum Information, State Key Laboratory of Extreme Photonics and Instrumentation, ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou, 310027 China ,grid.13402.340000 0004 1759 700XInternational Joint Innovation Center, The Electromagnetics Academy at Zhejiang University, Zhejiang University, Haining, 314400 China ,grid.13402.340000 0004 1759 700XKey Lab. of Advanced Micro/Nano Electronic Devices & Smart Systems of Zhejiang, Jinhua Institute of Zhejiang University, Zhejiang University, Jinhua, 321099 China ,grid.13402.340000 0004 1759 700XShaoxing Institute of Zhejiang University, Zhejiang University, Shaoxing, 312000 China
| | - Yiwei Peng
- grid.13402.340000 0004 1759 700XInterdisciplinary Center for Quantum Information, State Key Laboratory of Extreme Photonics and Instrumentation, ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou, 310027 China ,grid.13402.340000 0004 1759 700XInternational Joint Innovation Center, The Electromagnetics Academy at Zhejiang University, Zhejiang University, Haining, 314400 China ,grid.13402.340000 0004 1759 700XKey Lab. of Advanced Micro/Nano Electronic Devices & Smart Systems of Zhejiang, Jinhua Institute of Zhejiang University, Zhejiang University, Jinhua, 321099 China ,grid.13402.340000 0004 1759 700XShaoxing Institute of Zhejiang University, Zhejiang University, Shaoxing, 312000 China
| | - Chi Wang
- grid.13402.340000 0004 1759 700XInterdisciplinary Center for Quantum Information, State Key Laboratory of Extreme Photonics and Instrumentation, ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou, 310027 China ,grid.13402.340000 0004 1759 700XInternational Joint Innovation Center, The Electromagnetics Academy at Zhejiang University, Zhejiang University, Haining, 314400 China ,grid.13402.340000 0004 1759 700XKey Lab. of Advanced Micro/Nano Electronic Devices & Smart Systems of Zhejiang, Jinhua Institute of Zhejiang University, Zhejiang University, Jinhua, 321099 China ,grid.13402.340000 0004 1759 700XShaoxing Institute of Zhejiang University, Zhejiang University, Shaoxing, 312000 China
| | - Erping Li
- grid.13402.340000 0004 1759 700XInterdisciplinary Center for Quantum Information, State Key Laboratory of Extreme Photonics and Instrumentation, ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou, 310027 China ,grid.13402.340000 0004 1759 700XInternational Joint Innovation Center, The Electromagnetics Academy at Zhejiang University, Zhejiang University, Haining, 314400 China ,grid.13402.340000 0004 1759 700XKey Lab. of Advanced Micro/Nano Electronic Devices & Smart Systems of Zhejiang, Jinhua Institute of Zhejiang University, Zhejiang University, Jinhua, 321099 China ,grid.13402.340000 0004 1759 700XShaoxing Institute of Zhejiang University, Zhejiang University, Shaoxing, 312000 China
| | - Ying Li
- grid.13402.340000 0004 1759 700XInterdisciplinary Center for Quantum Information, State Key Laboratory of Extreme Photonics and Instrumentation, ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou, 310027 China ,grid.13402.340000 0004 1759 700XInternational Joint Innovation Center, The Electromagnetics Academy at Zhejiang University, Zhejiang University, Haining, 314400 China ,grid.13402.340000 0004 1759 700XKey Lab. of Advanced Micro/Nano Electronic Devices & Smart Systems of Zhejiang, Jinhua Institute of Zhejiang University, Zhejiang University, Jinhua, 321099 China ,grid.13402.340000 0004 1759 700XShaoxing Institute of Zhejiang University, Zhejiang University, Shaoxing, 312000 China
| | - Hongsheng Chen
- grid.13402.340000 0004 1759 700XInterdisciplinary Center for Quantum Information, State Key Laboratory of Extreme Photonics and Instrumentation, ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou, 310027 China ,grid.13402.340000 0004 1759 700XInternational Joint Innovation Center, The Electromagnetics Academy at Zhejiang University, Zhejiang University, Haining, 314400 China ,grid.13402.340000 0004 1759 700XKey Lab. of Advanced Micro/Nano Electronic Devices & Smart Systems of Zhejiang, Jinhua Institute of Zhejiang University, Zhejiang University, Jinhua, 321099 China ,grid.13402.340000 0004 1759 700XShaoxing Institute of Zhejiang University, Zhejiang University, Shaoxing, 312000 China
| | - Fei Gao
- grid.13402.340000 0004 1759 700XInterdisciplinary Center for Quantum Information, State Key Laboratory of Extreme Photonics and Instrumentation, ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou, 310027 China ,grid.13402.340000 0004 1759 700XInternational Joint Innovation Center, The Electromagnetics Academy at Zhejiang University, Zhejiang University, Haining, 314400 China ,grid.13402.340000 0004 1759 700XKey Lab. of Advanced Micro/Nano Electronic Devices & Smart Systems of Zhejiang, Jinhua Institute of Zhejiang University, Zhejiang University, Jinhua, 321099 China ,grid.13402.340000 0004 1759 700XShaoxing Institute of Zhejiang University, Zhejiang University, Shaoxing, 312000 China
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10
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Abstract
AbstractOptical skyrmions have recently been constructed by tailoring vectorial near-field distributions through the interference of multiple surface plasmon polaritons, offering promising features for advanced information processing, transport and storage. Here, we provide experimental demonstration of electromagnetic skyrmions based on magnetic localized spoof plasmons (LSP) showing large topological robustness against continuous deformations, without stringent external interference conditions. By directly measuring the spatial profile of all three vectorial magnetic fields, we reveal multiple π-twist target skyrmion configurations mapped to multi-resonant near-equidistant LSP eigenmodes. The real-space skyrmion topology is robust against deformations of the meta-structure, demonstrating flexible skyrmionic textures for arbitrary shapes. The observed magnetic LSP skyrmions pave the way to ultra-compact and robust plasmonic devices, such as flexible sensors, wearable electronics and ultra-compact antennas.
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11
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Zhou L, Zhang N, Hsu CC, Singer M, Zeng X, Li Y, Song H, Jornet J, Wu Y, Gan Q. Super-Resolution Displacement Spectroscopic Sensing over a Surface "Rainbow". ENGINEERING (BEIJING, CHINA) 2022; 17:75-81. [PMID: 38149108 PMCID: PMC10751035 DOI: 10.1016/j.eng.2022.03.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/28/2023]
Abstract
Subwavelength manipulation of light waves with high precision can enable new and exciting applications in spectroscopy, sensing, and medical imaging. For these applications, miniaturized spectrometers are desirable to enable the on-chip analysis of spectral information. In particular, for imaging-based spectroscopic sensing mechanisms, the key challenge is to determine the spatial-shift information accurately (i.e., the spatial displacement introduced by wavelength shift or biological or chemical surface binding), which is similar to the challenge presented by super-resolution imaging. Here, we report a unique "rainbow" trapping metasurface for on-chip spectrometers and sensors. Combined with super-resolution image processing, the low-setting 4× optical microscope system resolves a displacement of the resonant position within 35 nm on the plasmonic rainbow trapping metasurface with a tiny area as small as 0.002 mm2. This unique feature of the spatial manipulation of efficiently coupled rainbow plasmonic resonances reveals a new platform for miniaturized on-chip spectroscopic analysis with a spectral resolution of 0.032 nm in wavelength shift. Using this low-setting 4× microscope imaging system, we demonstrate a biosensing resolution of 1.92 × 109 exosomes per milliliter for A549-derived exosomes and distinguish between patient samples and healthy controls using exosomal epidermal growth factor receptor (EGFR) expression values, thereby demonstrating a new on-chip sensing system for personalized accurate bio/chemical sensing applications.
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Affiliation(s)
- Lyu Zhou
- Department of Electrical Engineering, The State University of New York at Buffalo, Buffalo, NY 14260, USA
| | - Nan Zhang
- Department of Electrical Engineering, The State University of New York at Buffalo, Buffalo, NY 14260, USA
| | - Chang Chieh Hsu
- Department of Biomedical Engineering, The State University of New York at Buffalo, Buffalo, NY 14260, USA
| | - Matthew Singer
- Department of Electrical Engineering, The State University of New York at Buffalo, Buffalo, NY 14260, USA
| | - Xie Zeng
- Department of Electrical Engineering, The State University of New York at Buffalo, Buffalo, NY 14260, USA
| | - Yizheng Li
- Department of Electrical Engineering, The State University of New York at Buffalo, Buffalo, NY 14260, USA
| | - Haomin Song
- Department of Electrical Engineering, The State University of New York at Buffalo, Buffalo, NY 14260, USA
| | - Josep Jornet
- Department of Electrical and Computer Engineering, Northeastern University, Boston, MA 02115, USA
| | - Yun Wu
- Department of Biomedical Engineering, The State University of New York at Buffalo, Buffalo, NY 14260, USA
| | - Qiaoqiang Gan
- Department of Electrical Engineering, The State University of New York at Buffalo, Buffalo, NY 14260, USA
- Material Science Engineering Program, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
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12
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Yan H, Jing L, Zhao J, Niu C, Zhang Y, Du L, Wang Z. Broadband nonreciprocal spoof plasmonic phase shifter based on transverse Faraday effects. OPTICS EXPRESS 2022; 30:24000-24008. [PMID: 36225070 DOI: 10.1364/oe.462863] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 06/04/2022] [Indexed: 06/16/2023]
Abstract
Spoof surface plasmon polaritons (SSPPs) have aroused widespread concern due to their strong ability in field confinement at low frequencies. For miniaturized integrated circuits, there is a pressing need for nonreciprocal spoof plasmonic platforms that provide diode functionalities. In this letter, we report the realization of nonreciprocal phase shifting in SSPPs using the transverse Faraday effect. A plasmonic coupled line is constructed by flipped stacking two corrugated metallic strips, in order to enhance the mode coupling between evanescent waves that carry opposite transverse spin angular momenta. With a transverse magnetized ferrite cladding, the SSPP mode is split into two circularly-polarized ones that show different propagation constants over a broad band. A nonreciprocal phase shifter compatible to standard microstrips is designed to validate the breaking of time-reversal symmetry in SSPPs. Microwave measurement demonstrates a differential phase shift up to 46.2°/cm from 12 GHz to 15 GHz. Owing to the advantages of strong field confinement and contactless ferrite integration, the proposed method enables an alternative pathway for nonreciprocal spoof interconnects.
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13
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Three-dimensional photonic topological insulator without spin-orbit coupling. Nat Commun 2022; 13:3499. [PMID: 35715401 PMCID: PMC9205999 DOI: 10.1038/s41467-022-30909-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 05/24/2022] [Indexed: 02/07/2023] Open
Abstract
Spin-orbit coupling, a fundamental mechanism underlying topological insulators, has been introduced to construct the latter's photonic analogs, or photonic topological insulators (PTIs). However, the intrinsic lack of electronic spin in photonic systems leads to various imperfections in emulating the behaviors of topological insulators. For example, in the recently demonstrated three-dimensional (3D) PTI, the topological surface states emerge, not on the surface of a single crystal as in a 3D topological insulator, but along an internal domain wall between two PTIs. Here, by fully abolishing spin-orbit coupling, we design and demonstrate a 3D PTI whose topological surface states are self-guided on its surface, without extra confinement by another PTI or any other cladding. The topological phase follows the original Fu's model for the topological crystalline insulator without spin-orbit coupling. Unlike conventional linear Dirac cones, a unique quadratic dispersion of topological surface states is directly observed with microwave measurement. Our work opens routes to the topological manipulation of photons at the outer surface of photonic bandgap materials.
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14
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Cheng ZW, Wang M, You ZH, Ma HF, Cui TJ. Spoof surface plasmonics: principle, design, and applications. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2022; 34:263002. [PMID: 35390773 DOI: 10.1088/1361-648x/ac6558] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Accepted: 04/07/2022] [Indexed: 06/14/2023]
Abstract
Surface plasmon polaritons (SPPs) are interactions between incident electromagnetic waves and free electrons on the metal-dielectric interface in the optical regime. To mimic SPPs in the microwave frequency, spoof SPPs (SSPPs) on ultrathin and flexible corrugated metallic strips were proposed and designed, which also inherit the advantages of lightweight, conformal, low profile, and easy integration with the traditional microwave circuits. In this paper, we review the recent development of SSPPs, including the basic concept, design principle, and applications along with the development from unwieldy waveguides to ultrathin transmission lines. The design schemes from passive and active devices to SSPP systems are presented respectively. For the passive SSPP devices, the related applications including filters, splitters, combiners, couplers, topological SSPPs, and radiations introduced. For the active SSPP devices, from the perspectives of transmission and radiation, we present a series of active SSPP devices with diversity and flexibility, including filtering, amplification, attenuation, nonlinearity, and leaky-wave radiations. Finally, several microwave systems based on SSPPs are reported, showing their unique advantages. The future directions and potential applications of the ultra-thin SSPP structures in the microwave and millimeter-wave regions are discussed.
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Affiliation(s)
- Zhang Wen Cheng
- State Key Laboratory of Millimeter Waves, School of Information Science and Engineering, Southeast University, Nanjing 210096, People's Republic of China
| | - Meng Wang
- State Key Laboratory of Millimeter Waves, School of Information Science and Engineering, Southeast University, Nanjing 210096, People's Republic of China
| | - Zi Hua You
- State Key Laboratory of Millimeter Waves, School of Information Science and Engineering, Southeast University, Nanjing 210096, People's Republic of China
| | - Hui Feng Ma
- State Key Laboratory of Millimeter Waves, School of Information Science and Engineering, Southeast University, Nanjing 210096, People's Republic of China
| | - Tie Jun Cui
- State Key Laboratory of Millimeter Waves, School of Information Science and Engineering, Southeast University, Nanjing 210096, People's Republic of China
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15
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Analysis and Simulation of the Optical Properties of a Quantum Dot on a Graphene Nanoribbon System. PHOTONICS 2022. [DOI: 10.3390/photonics9040220] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
In this work, we theoretically study the optical properties of a graphene nanoribbon with a quantum dot (QD) on it. The system consists of a graphene nanoribbon with dimensions of 400 × 3100 (nm2) and a quantum dot with a nanoscale radius. The quantum dot is symmetrically located at the center of the graphene nanoribbon to simplify the mathematical model. To calculate the optical properties (susceptibility) of the system, a broadband electromagnetic wave (0.5–2.5 μm) is applied to the structure to model dipole-dipole interaction. Considering the input field and calculating the total induced polarization, the optical susceptibility of the system is calculated. The applied electromagnetic field excites the surface plasmon on the graphene nanoribbon and the excitons of QDs. The induced dipoles in the graphene nanoribbon and the QD will interact with each other. We show that the parameters of both materials strongly influence dipole-dipole interaction. In particular, the effect of QDs (location on graphene and radius) on the optical properties of the considered system was studied. The obtained results can be used to introduce periodic optical structures in nanoscale by inserting QDs in a periodic array on graphene nanoribbon. Additionally, applications such as reflectors, couplers, and wavelength filters can be designed. Considering the presented theoretical framework, we can describe all the optoelectronic and optomechanical applications of complex nanoscale graphene and QD systems.
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16
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Abstract
Optical skyrmions have recently been constructed by tailoring vectorial near-field distributions through the interference of multiple surface plasmon polaritons, offering promising features for advanced information processing, transport and storage. Here, we provide experimental demonstration of electromagnetic skyrmions based on magnetic localized spoof plasmons (LSP) showing large topological robustness against continuous deformations, without stringent external interference conditions. By directly measuring the spatial profile of all three vectorial magnetic fields, we reveal multiple π-twist target skyrmion configurations mapped to multi-resonant near-equidistant LSP eigenmodes. The real-space skyrmion topology is robust against deformations of the meta-structure, demonstrating flexible skyrmionic textures for arbitrary shapes. The observed magnetic LSP skyrmions pave the way to ultra-compact and robust plasmonic devices, such as flexible sensors, wearable electronics and ultra-compact antennas.
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17
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Kameshkov O, Gerasimov V, Knyazev B. Numerical Optimization of Refractive Index Sensors Based on Diffraction Gratings with High Aspect Ratio in Terahertz Range. SENSORS 2021; 22:s22010172. [PMID: 35009715 PMCID: PMC8749830 DOI: 10.3390/s22010172] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 12/21/2021] [Accepted: 12/25/2021] [Indexed: 11/16/2022]
Abstract
Terahertz surface plasmon resonance (SPR) sensors have been regarded as a promising technology in biomedicine due to their real-time, label-free, and ultrasensitive monitoring features. Different authors have suggested a lot of SPR sensors, including those based on 2D and 3D metamaterials, subwavelength gratings, graphene, and graphene nanotube, as well as others. However, one of the traditional approaches to realize high sensitivity SPR sensors based on metal diffraction gratings has been studied poorly in the terahertz frequency range. In this article, a linear metal rectangular diffraction grating with high aspect ratio is studied. The influence of the grating structure parameters on the sensor sensitivity is simulated. Effects arising from different ratios of depth and width were discovered and explained. The results show that the sensitivity can be increased to 2.26 THz/RIU when the refractive index range of the gas to measure is between 1 and 1.002 with the resolution 5×10−5 RIU.
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Affiliation(s)
- Oleg Kameshkov
- Budker Institute of Nuclear Physics SB RAS, 630090 Novosibirsk, Russia; (O.K.); (B.K.)
- Department of Physics, Novosibirsk State University, 630090 Novosibirsk, Russia
| | - Vasily Gerasimov
- Budker Institute of Nuclear Physics SB RAS, 630090 Novosibirsk, Russia; (O.K.); (B.K.)
- Department of Physics, Novosibirsk State University, 630090 Novosibirsk, Russia
- Correspondence:
| | - Boris Knyazev
- Budker Institute of Nuclear Physics SB RAS, 630090 Novosibirsk, Russia; (O.K.); (B.K.)
- Department of Physics, Novosibirsk State University, 630090 Novosibirsk, Russia
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18
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Ren Y, Zhang J, Gao X, Zheng X, Liu X, Cui TJ. Active spoof plasmonics: from design to applications. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2021; 34:053002. [PMID: 34673556 DOI: 10.1088/1361-648x/ac31f7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Accepted: 10/21/2021] [Indexed: 06/13/2023]
Abstract
Spoof plasmonic metamaterials enable the transmission of electromagnetic energies with strong field confinement, opening new pathways to the miniaturization of devices for modern communications. The design of active, reconfigurable, and nonlinear devices for the efficient generation and guidance, dynamic modulation, and accurate detection of spoof surface plasmonic signals has become one of the major research directions in the field of spoof plasmonic metamaterials. In this article, we review recent progress in the studies on spoof surface plasmons with a special focus on the active spoof surface plasmonic devices and systems. Different design schemes are introduced, and the related applications including reconfigurable filters, high-resolution sensors for chemical and biological sensing, graphene-based attenuators, programmable and multi-functional devices, nonlinear devices, splitters, leaky-wave antennas and multi-scheme digital modulators are discussed. The presence of active SSPPs based on different design schemes makes it possible to dynamically control electromagnetic waves in real time. The promising future of active spoof plasmonic metamaterials in the communication systems is also speculated.
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Affiliation(s)
- Yi Ren
- Institute of Electromagnetic Space, Southeast University, Nanjing 210096, People's Republic of China
- State Key Laboratory of Millimeter Waves, Southeast University, Nanjing 210096, People's Republic of China
| | - Jingjing Zhang
- Institute of Electromagnetic Space, Southeast University, Nanjing 210096, People's Republic of China
- State Key Laboratory of Millimeter Waves, Southeast University, Nanjing 210096, People's Republic of China
| | - Xinxin Gao
- Institute of Electromagnetic Space, Southeast University, Nanjing 210096, People's Republic of China
- State Key Laboratory of Millimeter Waves, Southeast University, Nanjing 210096, People's Republic of China
| | - Xin Zheng
- Institute of Electromagnetic Space, Southeast University, Nanjing 210096, People's Republic of China
- State Key Laboratory of Millimeter Waves, Southeast University, Nanjing 210096, People's Republic of China
| | - Xinyu Liu
- Institute of Electromagnetic Space, Southeast University, Nanjing 210096, People's Republic of China
- State Key Laboratory of Millimeter Waves, Southeast University, Nanjing 210096, People's Republic of China
| | - Tie Jun Cui
- Institute of Electromagnetic Space, Southeast University, Nanjing 210096, People's Republic of China
- State Key Laboratory of Millimeter Waves, Southeast University, Nanjing 210096, People's Republic of China
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19
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Wang S, Zhang J, Fu M, He J, Li X. Multifunctional Plasmonic Grating Based on the Phase Modulation of Excitation Light. NANOMATERIALS 2021; 11:nano11112941. [PMID: 34835705 PMCID: PMC8621653 DOI: 10.3390/nano11112941] [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: 10/08/2021] [Revised: 10/23/2021] [Accepted: 11/01/2021] [Indexed: 12/02/2022]
Abstract
Multifunctional optical devices are desirable at all times due to their features of flexibility and high efficiency. Based on the principle that the phase of excitation light can be transferred to the generated surface plasmon polaritons (SPPs), a plasmonic grating with three functions is proposed and numerically demonstrated. The Cherenkov SPPs wake or nondiffracting SPPs Bessel beam or focusing SPPs field can be correspondingly excited for the excitation light, which is modulated by a linear gradient phase or a symmetrical phase or a spherical phase, respectively. Moreover, the features of these functions such as the propagation direction of SPPs wake, the size and direction of the SPPs Bessel beam, and the position of SPPs focus can be dynamically manipulated. In consideration of the fact that no extra fabrication is required to obtain the different SPPs fields, the proposed approach can effectively reduce the cost in practical applications.
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Affiliation(s)
- Sen Wang
- Shandong Provincial Engineering and Technical Center of Light Manipulations & Shandong Provincial Key Laboratory of Optics and Photonic Device, College of Physics and Electronics, Shandong Normal University, Jinan 250014, China;
- Correspondence: (S.W.); (X.L.)
| | - Jing Zhang
- Shandong Provincial Engineering and Technical Center of Light Manipulations & Shandong Provincial Key Laboratory of Optics and Photonic Device, College of Physics and Electronics, Shandong Normal University, Jinan 250014, China;
| | - Maixia Fu
- Key Laboratory of Grain Information Processing and Control, College of Information Science and Engineering, Henan University of Technology, Zhengzhou 450001, China;
| | - Jingwen He
- State Key Laboratory of Space-Ground Integrated Information Technology, Beijing Institute of Satellite Information Engineering, Beijing 100095, China;
| | - Xing Li
- Shandong Provincial Engineering and Technical Center of Light Manipulations & Shandong Provincial Key Laboratory of Optics and Photonic Device, College of Physics and Electronics, Shandong Normal University, Jinan 250014, China;
- Correspondence: (S.W.); (X.L.)
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20
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Li SQ, Du CH, Han FY, Li FH, Zhang ZW, Gao ZC, Liu PK. Efficient magnetic-coupling excitation of LSSPs on high-Q multilayer planar-circular-grating resonators. OPTICS EXPRESS 2021; 29:25189-25201. [PMID: 34614855 DOI: 10.1364/oe.432721] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 07/14/2021] [Indexed: 06/13/2023]
Abstract
Recently, ultrathin localized spoof surface plasmon (LSSP) resonators are found to have intrinsic defects of relatively low quality factors (Q-factors) because of unavoidable material and radiation losses. In this paper, multilayer structures of planar-circular-grating resonators and their magnetic-coupling schemes are proposed to achieve effective excitation of high-Q LSSPs modes. By adopting the multilayer structures with air between the layers, the power dissipation effected by both material and radiation losses is significantly suppressed. Experimental results show that the Q-factors could reach more than 200 and the excitation efficiencies could reach more than 90%. Numerical simulations show the distribution of the electromagnetic field and illustrate the principle of magnetic coupling. Besides, the Q-factors of resonators with different structural parameters were measured and analyzed. This study aims to provide some inspirations on planar gyro-devices and to improve the performance of existing applications, such as sensors and filters.
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21
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Li XJ, Cheng G, Yan DX, Hou XM, Qiu GH, Li JS, Li JN, Guo SH, Zhou WD. One-dimensional terahertz dielectric gradient metasurface for broadband spoof surface plasmon polaritons couplers. OPTICS LETTERS 2021; 46:290-293. [PMID: 33449010 DOI: 10.1364/ol.412229] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 11/25/2020] [Indexed: 06/12/2023]
Abstract
At present, most of the gradient metasurfaces used to construct surface plasmon polaritons (SPPs)/spoof SPPs (SSPs) couplers are usually compact metal antennas working under reflection and transmission. In reflection mode, meta-couplers link propagating waves and surface waves (SWs), and SWs will undergo significant scattering before coupling to an Eigen SPP in the target system. In transmission mode, metal meta-couplers will encounter complex multilayer designing at the microwave/terahertz region and metal absorption loss at optical frequencies. In this Letter, to the best of our knowledge, a novel design using dielectric gradient metasurfaces instead of metal metasurface couplers is proposed to excite broadband SSPs on the metal groove array. We demonstrate that the well-designed phase dielectric gradient metasurface converts the normal incident terahertz wave to the predetermined angle in the dielectric substrate and then excites the broadband SSPs with the transmission coupling between the dielectric meta-coupler and SSPs surface. This research may open up new avenues in simple and broadband plane dielectric meta-couplers for SSPs in ultra-thin and compact functional devices for versatile applications.
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22
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A Compact Component for Multi-Band Rejection and Frequency Coding in the Plasmonic Circuit at Microwave Frequencies. ELECTRONICS 2020. [DOI: 10.3390/electronics10010004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Plasmonic circuits, which support the propagation of spoof surface plasmon polaritons (SSPPs) at microwave frequencies, have been developed in recent years as an expected candidate for future highly integrated systems, mainly because of their extraordinary field confinements and sub-wavelength resolution. On the other hand, artificial electromagnetic (EM) resonators are widely adopted in metamaterial design for flexible resonance and band gaps. In this work, an electrically small complementary spiral, which is made up of six helix branches sculptured in the ground, is proposed to achieve independent resonances at six different frequency bands. Combined with the grounded corrugated transmission line (TL), the proposed component can provide designable multi-band rejection, and compose frequency coding circuits with a compact size (less than λ0/4). The complementary spirals excited with the bending TL and the straight one are both investigated, and independence band rejections and designed 6-bit coding sequences in the frequency spectrum are demonstrated numerically and experimentally. Hence, it is concluded that such compact components can be adopted to flexibly control the rejection of waves in multi-frequency bands, and benefits the development of frequency-identification circuits and systems.
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23
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Lee GJ, Kim DH, Heo SY, Song YM. Spectrally and Spatially Selective Emitters Using Polymer Hybrid Spoof Plasmonics. ACS APPLIED MATERIALS & INTERFACES 2020; 12:53206-53214. [PMID: 33172255 DOI: 10.1021/acsami.0c13177] [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
Optimized thermal emitters using optical resonances have been attracting increased attention for diverse applications, such as infrared (IR) sensing, thermal imaging, gas sensing, thermophotovoltaics, thermal camouflage, and radiative cooling. Depending on the applications, the recently developed IR devices have been tailored to achieve not only spectrally engineered emission but also spatially resolved emission using various nanometallic structures, metamaterials, and multistacking layers, which accompany high structural complexity and prohibitive production cost. Herein, this article presents a simple and affordable approach to obtain spatially and spectrally selective hybrid thermal emitters (HTEs) based on spoof surface plasmons of microscaled Ag grooves manifested in encapsulation polymer layers. Theoretical analyses found that the polymer hybrid plasmonics allows diverse emission tuning within the long-wave IR (LWIR; 8-14 μm) region as follows: (1) spatially selective emission peaks only exist in the interface of Ag grooves and IR-transparent layers and (2) near-unity spectrally selective emission is obtained by refining inherent emissivity of a thin IR-opaque layer. Also, parametric studies computationally optimized the structural parameters for spatially and spectrally selective HTEs. Using the optimized parameters, the authors fabricated two HTEs and demonstrated the intriguing emission features in terms of infrared data encoding/decoding and radiative cooling, respectively. These successful demonstrations open up the applicability of HTEs for tailoring IR emission in a spatially and spectrally selective manner.
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Affiliation(s)
- Gil Ju Lee
- School of Electrical Engineering and Computer Science (EECS), Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea
| | - Do Hyeon Kim
- School of Electrical Engineering and Computer Science (EECS), Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea
| | - Se-Yeon Heo
- School of Electrical Engineering and Computer Science (EECS), Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea
| | - Young Min Song
- School of Electrical Engineering and Computer Science (EECS), Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea
- Anti-Virus Research Center, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea
- AI Graduate School, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea
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24
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Wang W, Gao W, Chen X, Shi F, Li G, Dong J, Xiang Y, Zhang S. Moiré Fringe Induced Gauge Field in Photonics. PHYSICAL REVIEW LETTERS 2020; 125:203901. [PMID: 33258635 DOI: 10.1103/physrevlett.125.203901] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Accepted: 10/23/2020] [Indexed: 06/12/2023]
Abstract
We realize moiré fringe induced gauge field in a double-layer photonic honeycomb metacrystal with mismatched lattice constants. Benefitting from the generated strong effective gauge field, we report direct measurement of the band diagrams of both Landau level flat bands and intermagnetic-domain edge states. Importantly, we observe the correlation between the momentum and orbital position of the Landau modes, serving as an evidence of the noncommuteness between orthogonal components of the momentum. Without complicated time driving mechanics and careful site-by-site engineering, moiré superlattices could emerge as a powerful means to generate effective gauge fields for photonics benefiting from its simplicity and reconfigurability, which can be applied to nonlinearity enhancement and lasing applications at optical frequencies.
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Affiliation(s)
- Wenhui Wang
- School of Physics & Astronomy, University of Birmingham, Birmingham B15 2TT, United Kingdom
| | - Wenlong Gao
- School of Physics & Astronomy, University of Birmingham, Birmingham B15 2TT, United Kingdom
| | - Xiaodong Chen
- School of Physics & State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University, Guangzhou 510275, China
| | - Fulong Shi
- School of Physics & State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University, Guangzhou 510275, China
| | - Guixin Li
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Jianwen Dong
- School of Physics & State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University, Guangzhou 510275, China
| | - Yuanjiang Xiang
- School of Physics and Electronics, Hunan University, Changsha 410082, China
| | - Shuang Zhang
- School of Physics & Astronomy, University of Birmingham, Birmingham B15 2TT, United Kingdom
- Department of Physics, University of Hong Kong, Hong Kong, China
- Department of Electrical & Electronic Engineering, University of Hong Kong, Hong Kong, China
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25
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Heo SY, Lee GJ, Kim DH, Kim YJ, Ishii S, Kim MS, Seok TJ, Lee BJ, Lee H, Song YM. A Janus emitter for passive heat release from enclosures. SCIENCE ADVANCES 2020; 6:6/36/eabb1906. [PMID: 32917610 PMCID: PMC7473666 DOI: 10.1126/sciadv.abb1906] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Accepted: 07/24/2020] [Indexed: 05/20/2023]
Abstract
Passive radiative cooling functions by reflecting the solar spectrum and emitting infrared waves in broadband or selectively. However, cooling enclosed spaces that trap heat by greenhouse effect remains a challenge. We present a Janus emitter (JET) consisting of an Ag-polydimethylsiloxane layer on micropatterned quartz substrate. The induced spoof surface plasmon polariton helps overcome inherent emissivity loss of the polymer and creates near-ideal selective and broadband emission on the separate sides. This design results in not only remarkable surface cooling when the JET is attached with either side facing outwards but also space cooling when used as an enclosure wall. Thus, the JET can passively mitigate the greenhouse effect in enclosures while offering surface cooling performance comparable to conventional radiative coolers.
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Affiliation(s)
- Se-Yeon Heo
- School of Electrical Engineering and Computer Science (EECS), Gwangju Institute of Science and Technology, 123 Cheomdangwagi-ro, Buk-gu, Gwangju 61005, Republic of Korea
| | - Gil Ju Lee
- School of Electrical Engineering and Computer Science (EECS), Gwangju Institute of Science and Technology, 123 Cheomdangwagi-ro, Buk-gu, Gwangju 61005, Republic of Korea
| | - Do Hyeon Kim
- School of Electrical Engineering and Computer Science (EECS), Gwangju Institute of Science and Technology, 123 Cheomdangwagi-ro, Buk-gu, Gwangju 61005, Republic of Korea
| | - Yeong Jae Kim
- School of Electrical Engineering and Computer Science (EECS), Gwangju Institute of Science and Technology, 123 Cheomdangwagi-ro, Buk-gu, Gwangju 61005, Republic of Korea
| | - Satoshi Ishii
- International Center for Materials Nanoarchitectonics, National Institute of Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
- Japan Science and Technology Agency, PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Min Seok Kim
- School of Electrical Engineering and Computer Science (EECS), Gwangju Institute of Science and Technology, 123 Cheomdangwagi-ro, Buk-gu, Gwangju 61005, Republic of Korea
| | - Tae Joon Seok
- School of Electrical Engineering and Computer Science (EECS), Gwangju Institute of Science and Technology, 123 Cheomdangwagi-ro, Buk-gu, Gwangju 61005, Republic of Korea
| | - Bong Jae Lee
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Heon Lee
- Department of Materials Science and Engineering, Korea University, 145 Anam-ro, Sungbuk-gu, Seoul 02841, Republic of Korea
| | - Young Min Song
- School of Electrical Engineering and Computer Science (EECS), Gwangju Institute of Science and Technology, 123 Cheomdangwagi-ro, Buk-gu, Gwangju 61005, Republic of Korea.
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26
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Ogawa S, Fukushima S, Shimatani M. Graphene Plasmonics in Sensor Applications: A Review. SENSORS 2020; 20:s20123563. [PMID: 32586048 PMCID: PMC7349696 DOI: 10.3390/s20123563] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 06/17/2020] [Accepted: 06/19/2020] [Indexed: 12/12/2022]
Abstract
Surface plasmon polaritons (SPPs) can be generated in graphene at frequencies in the mid-infrared to terahertz range, which is not possible using conventional plasmonic materials such as noble metals. Moreover, the lifetime and confinement volume of such SPPs are much longer and smaller, respectively, than those in metals. For these reasons, graphene plasmonics has potential applications in novel plasmonic sensors and various concepts have been proposed. This review paper examines the potential of such graphene plasmonics with regard to the development of novel high-performance sensors. The theoretical background is summarized and the intrinsic nature of graphene plasmons, interactions between graphene and SPPs induced by metallic nanostructures and the electrical control of SPPs by adjusting the Fermi level of graphene are discussed. Subsequently, the development of optical sensors, biological sensors and important components such as absorbers/emitters and reconfigurable optical mirrors for use in new sensor systems are reviewed. Finally, future challenges related to the fabrication of graphene-based devices as well as various advanced optical devices incorporating other two-dimensional materials are examined. This review is intended to assist researchers in both industry and academia in the design and development of novel sensors based on graphene plasmonics.
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27
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Becker S, Fip T, Rahm M. Routing of strongly confined terahertz spoof surface plasmon polaritons on metasurfaces along straight and curved pathways with subwavelength width. OPTICS EXPRESS 2020; 28:6766-6780. [PMID: 32225917 DOI: 10.1364/oe.384725] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
In search of new technologies for optimizing the performance and space requirements of electronic and optical micro-circuits, the concept of spoof surface plasmon polaritons (SSPPs) has come to the fore of research in recent years. Due to the ability of SSPPs to confine and guide the energy of electromagnetic waves in a subwavelength space below the diffraction limit, SSPPs deliver all the tools to implement integrated circuits with a high integration rate. However, in order to guide SSPPs in the terahertz frequency range, it is necessary to carefully design metasurfaces that allow one to manipulate the spatio-temporal and spectral properties of the SSPPs at will. Here, we propose a specifically designed cut-wire metasurface that sustains strongly confined SSPP modes at terahertz frequencies. As we show by numerical simulations and also prove in experimental measurements, the proposed metasurface can tightly guide SSPPs on straight and curved pathways while maintaining their subwavelength field confinement perpendicular to the surface. Furthermore, we investigate the dependence of the spatio-temporal and spectral properties of the SSPP modes on the width of the metasurface lanes that can be composed of one, two or three cut-wires in the transverse direction. Our investigations deliver new insights into downsizing effects of guiding structures for SSPPs.
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28
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Cao MS, Wang XX, Zhang M, Cao WQ, Fang XY, Yuan J. Variable-Temperature Electron Transport and Dipole Polarization Turning Flexible Multifunctional Microsensor beyond Electrical and Optical Energy. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1907156. [PMID: 31995267 DOI: 10.1002/adma.201907156] [Citation(s) in RCA: 80] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 12/13/2019] [Indexed: 05/21/2023]
Abstract
Humans are undergoing a fateful transformation focusing on artificial intelligence, quantum information technology, virtual reality, etc., which is inseparable from intelligent nano-micro devices. However, the booming of "Big Data" brings about an even greater challenge by growing electromagnetic radiation. Herein, an innovative flexible multifunctional microsensor is proposed, opening up a new horizon for intelligent devices. It integrates "non-crosstalk" multiple perception and green electromagnetic interference shielding only in one pixel, with satisfactory sensitivity and fast information feedback. Importantly, beneficial by deep insight into the variable-temperature electromagnetic response, the microsensor tactfully transforms the urgent threat of electromagnetic radiation into "wealth," further integrating self-power. This result will refresh researchers' realization of next-generation devices, ushering in a new direction for aerospace engineering, remote sensing, communications, medical treatment, biomimetic robot, prosthetics, etc.
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Affiliation(s)
- Mao-Sheng Cao
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Xi-Xi Wang
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Min Zhang
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Wen-Qiang Cao
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Xiao-Yong Fang
- School of Science, Yanshan University, Qinhuangdao, 066004, China
| | - Jie Yuan
- School of Information Engineering, Minzu University of China, Beijing, 100081, China
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29
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Zhang J, Hu X, Chen H, Gao F. DESIGNER SURFACE PLASMONS ENABLE TERAHERTZ CHERENKOV RADIATION (INVITED). ACTA ACUST UNITED AC 2020. [DOI: 10.2528/pier20102708] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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30
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Zhang HC, Zhang LP, He PH, Xu J, Qian C, Garcia-Vidal FJ, Cui TJ. A plasmonic route for the integrated wireless communication of subdiffraction-limited signals. LIGHT, SCIENCE & APPLICATIONS 2020; 9:113. [PMID: 32637080 PMCID: PMC7329838 DOI: 10.1038/s41377-020-00355-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 06/18/2020] [Accepted: 06/19/2020] [Indexed: 05/09/2023]
Abstract
Perfect lenses, superlenses and time-reversal mirrors can support and spatially separate evanescent waves, which is the basis for detecting subwavelength information in the far field. However, the inherent limitations of these methods have prevented the development of systems to dynamically distinguish subdiffraction-limited signals. Utilizing the physical merits of spoof surface plasmon polaritons (SPPs), we demonstrate that subdiffraction-limited signals can be transmitted on planar integrated SPP channels with low loss, low channel interference, and high gain and can be radiated with a very low environmental sensitivity. Furthermore, we show how deep subdiffraction-limited signals that are spatially coupled can be distinguished after line-of-sight wireless transmission. For a visualized demonstration, we realize the high-quality wireless communication of two movies on subwavelength channels over the line of sight in real time using our plasmonic scheme, showing significant advantages over the conventional methods.
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Affiliation(s)
- Hao Chi Zhang
- State Key Laboratory of Millimeter Waves, Southeast University, 210096 Nanjing, China
| | - Le Peng Zhang
- State Key Laboratory of Millimeter Waves, Southeast University, 210096 Nanjing, China
| | - Pei Hang He
- State Key Laboratory of Millimeter Waves, Southeast University, 210096 Nanjing, China
| | - Jie Xu
- State Key Laboratory of Millimeter Waves, Southeast University, 210096 Nanjing, China
| | - Cheng Qian
- State Key Laboratory of Millimeter Waves, Southeast University, 210096 Nanjing, China
| | - Francisco J. Garcia-Vidal
- Departamento de Física Teórica de la Materia Condensada and Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, Madrid, Spain
- Donostia International Physics Center (DIPC), Donostia/San Sebastian, Spain
| | - Tie Jun Cui
- State Key Laboratory of Millimeter Waves, Southeast University, 210096 Nanjing, China
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31
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Li QY, Zhao X, Zhao HZ, Zhou YJ. Selective amplification of spoof localized surface plasmons. APPLIED OPTICS 2019; 58:9797-9802. [PMID: 31873622 DOI: 10.1364/ao.58.009797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 11/15/2019] [Indexed: 06/10/2023]
Abstract
Here, selective amplification of spoof localized surface plasmons (LSPs) has been demonstrated, where two coupling stubs gathering energies from the spoof LSPs resonator are designed on the back of the corrugated metal-insulator-metal ring resonator. The quadrupole mode is selected and amplified through the coupling stubs and the incorporated amplifier chip, and the measured transmission intensity has been increased from $ - {6.46}\;{\rm dB}$-6.46dB to 10.74 dB by adjusting the bias voltage. The amplification mechanism is fully investigated by using the circuit simulation and the full-wave simulation. The numerical simulations and experimental measurement agree well with each other. The active amplified resonator can be widely used in chemical and biological sensing in microwave frequency.
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32
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Guo Y, Zhang Z, Pu M, Huang Y, Li X, Ma X, Xu M, Luo X. Spoof Plasmonic Metasurfaces with Catenary Dispersion for Two-Dimensional Wide-Angle Focusing and Imaging. iScience 2019; 21:145-156. [PMID: 31655255 PMCID: PMC6820237 DOI: 10.1016/j.isci.2019.10.019] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 09/04/2019] [Accepted: 10/07/2019] [Indexed: 11/06/2022] Open
Abstract
Although tremendous efforts have been devoted to investigating the analogy between the surface plasmon polariton and its spoof counterparts, it remains elusive that a single thin spoof plasmonic metalens realizes wide-angle focusing and wide field-of-view (FOV) imaging. Here, we propose a spoof plasmonic metasurface that can impart arbitrary phase with high transmittance, which comprises two-dimensional (2D) gradient spoof-insulator-spoof waveguides. With the developed catenary field and dispersion theory, their intrinsic physics is theoretically analyzed. As a proof of concept, a spoof plasmonic metalens with a thickness of 0.15λ has been elaborately designed and experimentally demonstrated for wide-angle (∼170°) focusing and wide FOV (∼40°) imaging. To the best of our knowledge, it is the first experimental demonstration of wide FOV imaging of a 2D object with single thin and planar metalens in the microwave regime. The proposed method offers a promising solution to compact cameras, integrated imaging, and detection systems. Thin spoof metalens has been developed A satisfactory qualitative description through catenary dispersion theory Wide-angle microwave focusing (170°) and wide FOV (40°) imaging of 2D objects
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Affiliation(s)
- Yinghui Guo
- State Key Laboratory of Optical Technologies on Nano-Fabrication and Micro-Engineering, Institute of Optics and Electronics, Chinese Academy of Sciences, P.O. Box 350, Chengdu 610209, China; School of Optoelectronics, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zuojun Zhang
- State Key Laboratory of Optical Technologies on Nano-Fabrication and Micro-Engineering, Institute of Optics and Electronics, Chinese Academy of Sciences, P.O. Box 350, Chengdu 610209, China; School of Optoelectronics, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Mingbo Pu
- State Key Laboratory of Optical Technologies on Nano-Fabrication and Micro-Engineering, Institute of Optics and Electronics, Chinese Academy of Sciences, P.O. Box 350, Chengdu 610209, China; School of Optoelectronics, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yijia Huang
- State Key Laboratory of Optical Technologies on Nano-Fabrication and Micro-Engineering, Institute of Optics and Electronics, Chinese Academy of Sciences, P.O. Box 350, Chengdu 610209, China; School of Optoelectronics, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiong Li
- State Key Laboratory of Optical Technologies on Nano-Fabrication and Micro-Engineering, Institute of Optics and Electronics, Chinese Academy of Sciences, P.O. Box 350, Chengdu 610209, China; School of Optoelectronics, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaoliang Ma
- State Key Laboratory of Optical Technologies on Nano-Fabrication and Micro-Engineering, Institute of Optics and Electronics, Chinese Academy of Sciences, P.O. Box 350, Chengdu 610209, China; School of Optoelectronics, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Mingfeng Xu
- State Key Laboratory of Optical Technologies on Nano-Fabrication and Micro-Engineering, Institute of Optics and Electronics, Chinese Academy of Sciences, P.O. Box 350, Chengdu 610209, China; School of Optoelectronics, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiangang Luo
- State Key Laboratory of Optical Technologies on Nano-Fabrication and Micro-Engineering, Institute of Optics and Electronics, Chinese Academy of Sciences, P.O. Box 350, Chengdu 610209, China; School of Optoelectronics, University of Chinese Academy of Sciences, Beijing 100049, China.
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