Conjugated topological interface-states in coupled ring resonators

Abstract The optical properties of topological photonics have attracted much interest recently because its potential applications for robust unidirectional transmission that are immune to scattering at disorder. However, researches on topological series coupled ring resonators (T-SCRR) have been muc...

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Autores principales:	Yu-Chuan Lin, Bo-Yu Chen, Wen-Jeng Hsueh
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/6db1fc5299d9446182b8977d2ef53ca6
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spelling	oai:doaj.org-article:6db1fc5299d9446182b8977d2ef53ca62021-12-02T17:47:36ZConjugated topological interface-states in coupled ring resonators10.1038/s41598-021-91288-y2045-2322https://doaj.org/article/6db1fc5299d9446182b8977d2ef53ca62021-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-91288-yhttps://doaj.org/toc/2045-2322Abstract The optical properties of topological photonics have attracted much interest recently because its potential applications for robust unidirectional transmission that are immune to scattering at disorder. However, researches on topological series coupled ring resonators (T-SCRR) have been much less discussed. The existence of topological interface-states (TIS) in the T-SCRR is described for the first time in this article. An approach has been developed to achieve this goal via the band structure of dielectric binary ring resonators and the Zak phase of each bandgap. It is found that an ultra-high-Q with complete transmission is obtained by the conjugated topological series coupled ring resonators due to the excitation of conjugated topological interface-states, which is different from those in conventional TIS. Furthermore, the problem of transmission decreases resulting from high-Q increases in the traditional photonic system is significantly improved by this approach. These findings could pave a novel path for developing advanced high-Q filters, optical sensors, switches, resonators, communications and quantum information processors.Yu-Chuan LinBo-Yu ChenWen-Jeng HsuehNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-7 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Yu-Chuan Lin Bo-Yu Chen Wen-Jeng Hsueh Conjugated topological interface-states in coupled ring resonators
description	Abstract The optical properties of topological photonics have attracted much interest recently because its potential applications for robust unidirectional transmission that are immune to scattering at disorder. However, researches on topological series coupled ring resonators (T-SCRR) have been much less discussed. The existence of topological interface-states (TIS) in the T-SCRR is described for the first time in this article. An approach has been developed to achieve this goal via the band structure of dielectric binary ring resonators and the Zak phase of each bandgap. It is found that an ultra-high-Q with complete transmission is obtained by the conjugated topological series coupled ring resonators due to the excitation of conjugated topological interface-states, which is different from those in conventional TIS. Furthermore, the problem of transmission decreases resulting from high-Q increases in the traditional photonic system is significantly improved by this approach. These findings could pave a novel path for developing advanced high-Q filters, optical sensors, switches, resonators, communications and quantum information processors.
format	article
author	Yu-Chuan Lin Bo-Yu Chen Wen-Jeng Hsueh
author_facet	Yu-Chuan Lin Bo-Yu Chen Wen-Jeng Hsueh
author_sort	Yu-Chuan Lin
title	Conjugated topological interface-states in coupled ring resonators
title_short	Conjugated topological interface-states in coupled ring resonators
title_full	Conjugated topological interface-states in coupled ring resonators
title_fullStr	Conjugated topological interface-states in coupled ring resonators
title_full_unstemmed	Conjugated topological interface-states in coupled ring resonators
title_sort	conjugated topological interface-states in coupled ring resonators
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/6db1fc5299d9446182b8977d2ef53ca6
work_keys_str_mv	AT yuchuanlin conjugatedtopologicalinterfacestatesincoupledringresonators AT boyuchen conjugatedtopologicalinterfacestatesincoupledringresonators AT wenjenghsueh conjugatedtopologicalinterfacestatesincoupledringresonators
_version_	1718379473524490240

Conjugated topological interface-states in coupled ring resonators

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