Results 31 to 40 of about 24,953 (116)

Bound states in the continuum and strong phase resonances in integrated Gires-Tournois interferometer

Nanophotonics, 2020
Photonic bound states in the continuum (BICs) are eigenmodes with an infinite lifetime, which coexist with a continuous spectrum of radiating waves. BICs are not only of great theoretical interest but also have a wide range of practical applications, e.g.
Bykov Dmitry A., Bezus Evgeni A., Doskolovich Leonid L.   +2 more
doaj   +1 more source

Active nonlocal metasurfaces

Nanophotonics, 2020
Actively tunable and reconfigurable wavefront shaping by optical metasurfaces poses a significant technical challenge often requiring unconventional materials engineering and nanofabrication.
Malek Stephanie C., Overvig Adam C., Shrestha Sajan, Yu Nanfang   +3 more
doaj   +1 more source

Enhanced optical squeezing from quasi-bound states in the continuum and Fano resonances without nonlinearity

New Journal of Physics, 2019
To achieve a high degree of quantum noise squeezing, nonlinear optical interaction process is often employed. Here, we propose to utilize quasi-bound states in the continuum (quasi-BICs) and Fano resonances to enhance optical squeezing without ...
Zhixin Li, Xiangdong Zhang
doaj   +1 more source

Active Formation of Friedrich–Wintgen Bound States in the Continuum in a Hybrid Plasmonic–Photonic Structure

Advanced Photonics Research
The Friedrich–Wintgen bound state in the continuum (FW BIC) provides a unique approach for achieving high quality factor (Q‐factor) resonance, which has attracted wide attention and promoted the development of various applications. However, the FW BIC is
Xiao‐Fei Yan, Xin‐Yang Wang, Qi Lin, Ling‐Ling Wang, Gui‐Dong Liu   +4 more
doaj   +1 more source

Dispersive bands of bound states in the continuum

Nanophotonics, 2021
Bound states in the continuum (BICs), i.e. highly-localized modes with energy embedded in the continuum of radiating waves, have provided in the past decade a new paradigm in optics and photonics, especially at the nanoscale, with a range of applications
Longhi Stefano
doaj   +1 more source

All-dielectric metasurfaces with high Q-factor Fano resonances enabling multi-scenario sensing

Nanophotonics, 2022
We propose and numerically demonstrate high Q-factor sensors based on all-dielectric metasurfaces, which are very sensitive to the change of the refractive index of the surrounding media and the incident angle.
Chen Xueer, Zhang Yong, Cai Guoxiong, Zhuo Jianliang, Lai Kunzhong, Ye Longfang   +5 more
doaj   +1 more source

Quasi-Bound States in the Continuum Enabled Strong Terahertz Chiroptical Response in Bilayer Metallic Metasurfaces

Crystals, 2022
Bound state in the continuum (BIC) as a novel non-radiating state of light in the continuum of propagating modes has received great attention in photonics. Recently, chiral BICs have been introduced in the terahertz regime.
Yaolin Hu, Suxia Xie, Chongjun Bai, Weiwei Shen, Jingcheng Yang   +4 more
doaj   +1 more source

Critical states embedded in the continuum

New Journal of Physics, 2015
We introduce a class of critical states which are embedded in the continuum (CSC) of a one-dimensional optical waveguide array with one non-Hermitian defect. These states are on the verge of being fractal and have real propagation constants.
M Koirala, A Yamilov, A Basiri, Y Bromberg, H Cao, T Kottos   +5 more
doaj   +1 more source

Nanogap enhancement of the refractometric sensitivity at quasi-bound states in the continuum in all-dielectric metasurfaces

Nanophotonics, 2023
All-dielectric metasurfaces have great potential as highly sensitive refractometric sensors relying on their spectral shifts because of an extensive range of design flexibilities and their smaller absorption losses than plasmonic platforms.
Watanabe Keisuke, Iwanaga Masanobu
doaj   +1 more source

Ultrahigh Q-Guided Resonance Sensor Empowered by Near Merging Bound States in the Continuum

Photonics, 2022
Bound states in the continuum (BICs) have attracted a lot of interest in the field of nanophotonics, and provide an important physical mechanism to realize high quality (Q) factor resonance.
Zhiran Liu, Yi Zhou, Zhihe Guo, Xuyang Zhao, Man Luo, Yuxiang Li, Xiang Wu   +6 more
doaj   +1 more source