Results 51 to 60 of about 392,529 (145)

Theoretical Enhancement of the Goos–Hänchen Shift with a Metasurface Based on Bound States in the Continuum

Micromachines, 2023
The enhancement of the Goos–Hänchen (GH) shift has become a research hotspot due to its promoted application of the GH effect in various fields. However, currently, the maximum GH shift is located at the reflectance dip, making it difficult to detect GH ...
Xiaowei Jiang, Bin Fang, Chunlian Zhan
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

The importance of basis states: an example using the Hydrogen basis

, 2015
We use a simple system, the electron configuration in a Hydrogen-like atom, to demonstrate the importance of using a complete basis set to provide a proper quantum mechanical description. We first start with what might be considered a successful strategy
Forestell, Lindsay, Marsiglio, Frank
core   +1 more source

Gamow Shell Model Description of Neutron-Rich Nuclei [PDF]

, 2002
This work presents the first continuum shell-model study of weakly bound neutron-rich nuclei involving multiconfiguration mixing. For the single-particle basis, the complex-energy Berggren ensemble representing the bound single-particle states, narrow ...
A. F. J. Siegert, A. Fortunato, C. Mahaux, G. G. Dussel, G. Gamow, H. W. Bartz, J. N. Ginocchio, K. Bennaceur, K. Bennaceur, K. Bennaceur, K. Bennaceur, M. Płoszajczak, N. Michel, P. Lind, P. Lind, R. Id Betan, R. J. Liotta, T. Berggren, T. Berggren, T. Berggren, T. Vertse, T. Vertse, T. Vertse, U. Fano, W. M. Wendler, W. Nazarewicz   +25 more
core   +4 more sources

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

Circularly polarized states spawning from bound states in the continuum

, 2019
Bound states in the continuum in periodic photonic systems like photonic crystal slabs are proved to be accompanied by vortex polarization singularities on the photonic bands in the momentum space.
Guan, Fang, Liu, Wenzhe, Liu, Xiaohan, Shi, Lei, Wang, Bo, Wang, Jiajun, Zhang, Yiwen, Zhao, Maoxiong, Zi, Jian   +8 more
core   +1 more source

Achieving asymmetry parameter-insensitive resonant modes through relative shift–induced quasi-bound states in the continuum

Nanophotonics
High-Q resonances in metasurfaces, stemming from symmetry-protected bound states in the continuum (BICs), have proven to be effective for achieving high-performance optical devices.
Sang Tian, Mi Qing, Yang Chaoyu, Zhang Xianghu, Wang Yueke, Ren Yongze, Xu Ting   +6 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

Demonstration of on-chip gigahertz acousto-optic modulation at near-visible wavelengths

Nanophotonics, 2021
Lithium niobate integrated photonics has recently received significant attention because it exploits the attractive properties of lithium niobate on an integrated platform which provides strong optical confinement as well as high photonic integration ...
Yu Yue, Wang Lai, Sun Xiankai
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