Bound states in the continuum in strong-coupling and weak-coupling regimes under the cylinder – ring transition

Bound states in the continuum (BIC) have been at the forefront of research in optics and photonics over the past decade. It is of great interest to study the effects associated with quasi-BICs in the simplest structures, where quasi-BICs are very pronounced. An example is a dielectric cylinder, and...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Solodovchenko Nikolay, Samusev Kirill, Bochek Daria, Limonov Mikhail
Formato:	article
Lenguaje:	EN
Publicado:	De Gruyter 2021
Materias:	avoided crossing bound state in the continuum dielectric resonator fano resonance mie resonance Physics QC1-999
Acceso en línea:	https://doaj.org/article/53718fd458a442378ea9c778eea5d2ee
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:53718fd458a442378ea9c778eea5d2ee
record_format	dspace
spelling	oai:doaj.org-article:53718fd458a442378ea9c778eea5d2ee2021-12-05T14:10:56ZBound states in the continuum in strong-coupling and weak-coupling regimes under the cylinder – ring transition2192-861410.1515/nanoph-2021-0351https://doaj.org/article/53718fd458a442378ea9c778eea5d2ee2021-09-01T00:00:00Zhttps://doi.org/10.1515/nanoph-2021-0351https://doaj.org/toc/2192-8614Bound states in the continuum (BIC) have been at the forefront of research in optics and photonics over the past decade. It is of great interest to study the effects associated with quasi-BICs in the simplest structures, where quasi-BICs are very pronounced. An example is a dielectric cylinder, and in a number of works, quasi-BICs have been studied both in single cylinders and in structures composed of cylinders. In this work, we studied the properties of quasi-BICs during the transition from a homogeneous dielectric cylinder in an air environment to a ring with narrow walls while increasing the diameter of the inner air cylinder gradually. The results demonstrate the quasi-BIC crossover from the strong-coupling to the weak-coupling regime, which manifests itself in the transition from the avoided crossing of branches to their intersection with the quasi-BIC being preserved on only one straight branch. In the regime of strong-coupling and quasi-BIC, three waves interfere in the far-field zone: two waves corresponding to the resonant modes of the structure and the wave scattered by the structure as a whole. The validity of the Fano resonance concept is discussed since it describes the interference of only two waves under weak coupling conditions.Solodovchenko NikolaySamusev KirillBochek DariaLimonov MikhailDe Gruyterarticleavoided crossingbound state in the continuumdielectric resonatorfano resonancemie resonancePhysicsQC1-999ENNanophotonics, Vol 10, Iss 17, Pp 4347-4355 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	avoided crossing bound state in the continuum dielectric resonator fano resonance mie resonance Physics QC1-999
spellingShingle	avoided crossing bound state in the continuum dielectric resonator fano resonance mie resonance Physics QC1-999 Solodovchenko Nikolay Samusev Kirill Bochek Daria Limonov Mikhail Bound states in the continuum in strong-coupling and weak-coupling regimes under the cylinder – ring transition
description	Bound states in the continuum (BIC) have been at the forefront of research in optics and photonics over the past decade. It is of great interest to study the effects associated with quasi-BICs in the simplest structures, where quasi-BICs are very pronounced. An example is a dielectric cylinder, and in a number of works, quasi-BICs have been studied both in single cylinders and in structures composed of cylinders. In this work, we studied the properties of quasi-BICs during the transition from a homogeneous dielectric cylinder in an air environment to a ring with narrow walls while increasing the diameter of the inner air cylinder gradually. The results demonstrate the quasi-BIC crossover from the strong-coupling to the weak-coupling regime, which manifests itself in the transition from the avoided crossing of branches to their intersection with the quasi-BIC being preserved on only one straight branch. In the regime of strong-coupling and quasi-BIC, three waves interfere in the far-field zone: two waves corresponding to the resonant modes of the structure and the wave scattered by the structure as a whole. The validity of the Fano resonance concept is discussed since it describes the interference of only two waves under weak coupling conditions.
format	article
author	Solodovchenko Nikolay Samusev Kirill Bochek Daria Limonov Mikhail
author_facet	Solodovchenko Nikolay Samusev Kirill Bochek Daria Limonov Mikhail
author_sort	Solodovchenko Nikolay
title	Bound states in the continuum in strong-coupling and weak-coupling regimes under the cylinder – ring transition
title_short	Bound states in the continuum in strong-coupling and weak-coupling regimes under the cylinder – ring transition
title_full	Bound states in the continuum in strong-coupling and weak-coupling regimes under the cylinder – ring transition
title_fullStr	Bound states in the continuum in strong-coupling and weak-coupling regimes under the cylinder – ring transition
title_full_unstemmed	Bound states in the continuum in strong-coupling and weak-coupling regimes under the cylinder – ring transition
title_sort	bound states in the continuum in strong-coupling and weak-coupling regimes under the cylinder – ring transition
publisher	De Gruyter
publishDate	2021
url	https://doaj.org/article/53718fd458a442378ea9c778eea5d2ee
work_keys_str_mv	AT solodovchenkonikolay boundstatesinthecontinuuminstrongcouplingandweakcouplingregimesunderthecylinderringtransition AT samusevkirill boundstatesinthecontinuuminstrongcouplingandweakcouplingregimesunderthecylinderringtransition AT bochekdaria boundstatesinthecontinuuminstrongcouplingandweakcouplingregimesunderthecylinderringtransition AT limonovmikhail boundstatesinthecontinuuminstrongcouplingandweakcouplingregimesunderthecylinderringtransition
_version_	1718371535180267520

Bound states in the continuum in strong-coupling and weak-coupling regimes under the cylinder – ring transition

Ejemplares similares