Results 61 to 70 of about 394,492 (288)

Bound States in the Continuum through Environmental Design

open access: yesPhysical Review Letters, 2019
7 pages, 3 ...
Alexander Cerjan   +2 more
openaire   +4 more sources

The Mass Spectrum of a Static Adjoint Particle [PDF]

open access: yes, 1997
The bound states of fermions in the adjoint representation are of interest in supersymmetric models. We investigate the energy spectrum of the simplest -- the gluino-gluon bound states -- on several lattices in the quenched approximation. We use a static
C. Michael, Jorysz, M. Foster, Michael
core   +2 more sources

Exceptional Bound States in the Continuum

open access: yesPhysical Review Letters
Bound states in the continuum and exceptional points are unique singularities of non-Hermitian systems. In optical implementations, the former demonstrate strong enhancement of the electromagnetic field, while the latter exhibit high sensitivity to small perturbations. Hence, exceptional points are being actively investigated as next-generation optical
Adrià Canós Valero   +4 more
openaire   +3 more sources

Simulation Analysis of Microwave Metasurface Sensing Based on Bound States in the Continuum

open access: yesPhotonics
High-sensitivity microwave sensing plays a vital role in material characterization and nondestructive testing, with its performance being largely determined by the quality factor (Q factor) of the sensing structure.
Fanghao Li, Zhibao Huang, Tingting Lang
doaj   +1 more source

Active quasi-BIC optical vortex generators for ultrafast switching

open access: yesNew Journal of Physics, 2022
The Pancharatnam–Berry phase induced by the winding topology of polarization around a vortex singularity at bound states in the continuum (BIC) provides a unique approach to optical vortex (OV) generation.
Yuhao Wu, Lei Kang, Douglas H Werner
doaj   +1 more source

Delocalized Electric Field Enhancement through Near-Infrared Quasi-BIC Modes in a Hollow Cuboid Metasurface

open access: yesNanomaterials, 2023
The two main problems of dielectric metasurfaces for sensing and spectroscopy based on electromagnetic field enhancement are that resonances are mainly localized inside the resonator volume and that experimental Q-factors are very limited.
José Francisco Algorri   +3 more
doaj   +1 more source

Optical lattices with exceptional points in the continuum

open access: yes, 2014
The spectral, dynamical and topological properties of physical systems described by non-Hermitian (including $\mathcal{PT}$-symmetric) Hamiltonians are deeply modified by the appearance of exceptional points and spectral singularities.
Della Valle, G., Longhi, S.
core   +1 more source

Excitonic states of an impurity in a Fermi gas [PDF]

open access: yes, 2015
We study excitonic states of an atomic impurity in a Fermi gas, i.e., bound states consisting of the impurity and a hole. Previous studies considered bound states of the impurity with particles from the Fermi sea where the holes only formed part of the ...
Lan, Zhihao, Lobo, Carlos
core   +1 more source

Optomechanical crystal with bound states in the continuum

open access: yesNature Communications, 2022
AbstractChipscale micro- and nano-optomechanical systems, hinging on the intangible radiation-pressure force, have shown their unique strength in sensing, signal transduction, and exploration of quantum physics with mechanical resonators. Optomechanical crystals, as one of the leading device platforms, enable simultaneous molding of the band structure ...
Shengyan Liu, Hao Tong, Kejie Fang
openaire   +4 more sources

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

open access: yesMicromachines, 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

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