Results 11 to 20 of about 24,953 (116)

Tunable high-quality-factor absorption in a graphene monolayer based on quasi-bound states in the continuum

Beilstein Journal of Nanotechnology, 2022
A tunable graphene absorber, composed of a graphene monolayer and a substrate spaced by a subwavelength dielectric grating, is proposed and investigated.
Jun Wu, Yasong Sun, Feng Wu, Biyuan Wu, Xiaohu Wu   +4 more
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Manipulating Optical Scattering of Quasi-BIC in Dielectric Metasurface with Off-Center Hole

Nanomaterials, 2021
Bound states in the continuum (BICs) correspond to a particular leaky mode with an infinitely large quality-factor (Q-factor) located within the continuum spectrum.
Chaobiao Zhou, Tianyao Pu, Jing Huang, Menghui Fan, Lujun Huang   +4 more
doaj   +1 more source

Bound states in the continuum and exceptional points in dielectric waveguide equipped with a metal grating

New Journal of Physics, 2020
Bound states in the continuum (BICs) and exceptional points (EPs) have been the subjects of recent intensive research as they exhibit exotic phenomena that are significant for both fundamental physics and practical applications.
Ryo Kikkawa, Munehiro Nishida, Yutaka Kadoya   +2 more
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Label-free DNA biosensing by topological light confinement

Nanophotonics, 2021
Large-area and transparent all-dielectric metasurfaces sustaining photonic bound states in the continuum (BICs) provide a set of fundamental advantages for ultrasensitive biosensing.
Zito Gianluigi, Sanità Gennaro, Guilcapi Alulema Bryan, Lara Yépez Sofía N., Lanzio Vittorino, Riminucci Fabrizio, Cabrini Stefano, Moccia Maria, Avitabile Concetta, Lamberti Annalisa, Mocella Vito, Rendina Ivo, Romano Silvia   +12 more
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Kerker Effects and Bound States in the Continuum in PT-Symmetric Dielectric Metasurfaces

IEEE Photonics Journal, 2022
We investigate the light transmission and reflection spectra of parity-time (PT) symmetric dielectric metasurfaces composed of high refractive index nanostructures with in-plane gain-loss modulation through the scattering matrix and semianalytical ...
Zhongqing Fang, Xiaofang Yang, Xiaolin Chen, Rugang Wang, Feng Zhou, Weibin Kong, Chuanjie Chen   +6 more
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Passive nonreciprocal transmission and optical bistability based on polarization-independent bound states in the continuum

Nanophotonics, 2023
Free-space nonreciprocal transmission is a crucial aspect of modern optics devices. The implementation of nonreciprocal optical devices through optical nonlinearity has been demonstrated.
Chen Shiwen, Zeng Yixuan, Li Zhongfu, Mao Yu, Dai Xiaoyu, Xiang Yuanjiang   +5 more
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Universal coupled theory for metamaterial bound states in the continuum

New Journal of Physics, 2021
In this paper, we present a novel universal coupled theory for metamaterial bound states in the continuum (BIC) or quasi-bound states in the continuum (quasi-BIC) which provides ultra-high Q resonance for metamaterial devices.
Wei Huang, Songyi Liu, Yu Cheng, Jiaguang Han, Shan Yin, Wentao Zhang   +5 more
doaj   +1 more source

Strong Purcell effect of magnetic quasi-BICs in the dielectric metasurface

New Journal of Physics, 2023
The ultra-strong light field trapped in micro- and nanostructures, and derived from optical bound states in the continuums (BICs), provides a new platform for the facilitation of light–matter interactions.
Lijuan Wu, Jing Huang, Deliang Chen, Menghui Fan, Mingzhe Hu, Chaobiao Zhou   +5 more
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Quasi-BICs Enabled Proximity Sensing Based on Metal Complementary H-Shaped Arrays at Terahertz Frequencies

IEEE Photonics Journal, 2022
All metal sensing based on complementary H-shaped arrays (HSAs) is numerically and experimentally investigated at terahertz frequencies. The symmetry-protected bound states in the continuum (BICs) are activated by adjusting one arm's length of the
Lele Wang, Jun Cao, Xiaowen Li, Yanliang Zhao, Hui Shi, Liping Fu, Dejun Liu, Feng Liu   +7 more
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Polarization-based branch selection of bound states in the continuum in dielectric waveguide modes anti-crossed by a metal grating

New Journal of Physics, 2019
We investigate bound states in the continuum (BICs) in a planar dielectric waveguide structure consisting of a gold grating on a dielectric layer with a back layer of metal.
R Kikkawa, M Nishida, Y Kadoya
doaj   +1 more source