Results 41 to 50 of about 394,492 (288)

Photonic Bound States in the Continuum in Nanostructures

open access: yesMaterials, 2023
Bound states in the continuum (BIC) have garnered considerable attention recently for their unique capacity to confine electromagnetic waves within an open or non-Hermitian system. Utilizing a variety of light confinement mechanisms, nanostructures can achieve ultra-high quality factors and intense field localization with BIC, offering advantages such ...
Hongkun Zhong   +3 more
openaire   +2 more sources

Bound States and Superconductivity in Dense Fermi Systems [PDF]

open access: yes, 2008
A quantum field theoretical approach to the thermodynamics of dense Fermi systems is developed for the description of the formation and dissolution of quantum condensates and bound states in dependence of temperature and density.
A. Schnell   +17 more
core   +1 more source

Universal coupled theory for metamaterial bound states in the continuum

open access: yesNew 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   +5 more
doaj   +1 more source

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

open access: yesNew 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   +5 more
doaj   +1 more source

Quasi-BICs Enabled Proximity Sensing Based on Metal Complementary H-Shaped Arrays at Terahertz Frequencies

open access: yesIEEE 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   +7 more
doaj   +1 more source

General Bound States in the Continuum in Momentum Space

open access: yesPhysical Review Letters, 2023
Polarization singularities including bound states in the continuum (BICs) and circularly polarized states have provided promising opportunities in the manipulation of light waves. Previous studies show that BICs in photonic crystal slabs are protected by $C_{2}T$ symmetry and hence normally exist on the high-symmetry lines of momentum space.
Qiao Jiang   +4 more
openaire   +3 more sources

Graphene Optical Modulators Using Bound States in the Continuum [PDF]

open access: yesScientific Reports, 2021
Abstract Graphene-based optical modulators have been widely investigated due to the high mobility and tunable permittivity of graphene. However, achieving a high modulation depth with a low insertion loss is challenging owing to low graphene-light interaction.
Myunghwan Kim, Sangin Kim, Soeun Kim
openaire   +3 more sources

Catalytic Metasurfaces Empowered by Bound States in the Continuum [PDF]

open access: yesACS Nano, 2022
Photocatalytic platforms based on ultrathin reactive materials facilitate carrier transport and extraction but are typically restricted to a narrow set of materials and spectral operating ranges due to limited absorption and poor energy-tuning possibilities.
Haiyang Hu   +8 more
openaire   +5 more sources

Rabi oscillations of bound states in the continuum [PDF]

open access: yesOptics Letters, 2021
Photonic bound states in the continuum (BICs) are special localized and non-decaying states of a photonic system with a frequency embedded into the spectrum of scattered states. The simplest photonic structure displaying a single BIC is provided by two waveguides side-coupled to a common waveguide lattice, where the BIC is protected by symmetry.
openaire   +6 more sources

Quasi-bound states in continuum [PDF]

open access: yes, 2007
We report the prediction of quasi-bound states (resonant states with very long lifetimes) that occur in the eigenvalue continuum of propagating states for a wide region of parameter space. These quasi-bound states are generated in a quantum wire with two
E. C. G. Sudarshan   +6 more
core   +2 more sources

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