Freestanding bilayer plasmonic waveguide coupling mechanism for ultranarrow electromagnetic-induced transparency band generation

Abstract Strong electromagnetic coupling among plasmonic nanostructures paves a new route toward efficient manipulation of photons. Particularly, plasmon-waveguide systems exhibit remarkable optical properties by simply tailoring the interaction among elementary elements. In this paper, we propose a...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Li Yu, Yuzhang Liang, Shuwen Chu, Huixuan Gao, Qiao Wang, Wei Peng
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/2901c200f3a745ee850f92c9f657d61a
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:2901c200f3a745ee850f92c9f657d61a
record_format	dspace
spelling	oai:doaj.org-article:2901c200f3a745ee850f92c9f657d61a2021-12-02T15:23:00ZFreestanding bilayer plasmonic waveguide coupling mechanism for ultranarrow electromagnetic-induced transparency band generation10.1038/s41598-021-81118-62045-2322https://doaj.org/article/2901c200f3a745ee850f92c9f657d61a2021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-81118-6https://doaj.org/toc/2045-2322Abstract Strong electromagnetic coupling among plasmonic nanostructures paves a new route toward efficient manipulation of photons. Particularly, plasmon-waveguide systems exhibit remarkable optical properties by simply tailoring the interaction among elementary elements. In this paper, we propose and demonstrate a freestanding bilayer plasmonic-waveguide structure exhibiting an extremely narrow transmission peak with efficiency up to 92%, the linewidth of only 0.14 nm and an excellent out of band rejection. The unexpected optical behavior considering metal loss is consistent with that of electromagnetic induced transparency, arising from the destructive interference of super-radiative nanowire dipolar mode and transversal magnetic waveguide mode. Furthermore, for slow light application, the designed plasmonic-waveguide structure has a high group index of approximately 1.2 × 105 at the maximum of the transmission band. In sensing application, its lowest sensing figure of merit is achieved up to 8500 due to the ultra-narrow linewidth of the transmission band. This work provides a valuable photonics design for developing high performance nano-photonic devices.Li YuYuzhang LiangShuwen ChuHuixuan GaoQiao WangWei PengNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Li Yu Yuzhang Liang Shuwen Chu Huixuan Gao Qiao Wang Wei Peng Freestanding bilayer plasmonic waveguide coupling mechanism for ultranarrow electromagnetic-induced transparency band generation
description	Abstract Strong electromagnetic coupling among plasmonic nanostructures paves a new route toward efficient manipulation of photons. Particularly, plasmon-waveguide systems exhibit remarkable optical properties by simply tailoring the interaction among elementary elements. In this paper, we propose and demonstrate a freestanding bilayer plasmonic-waveguide structure exhibiting an extremely narrow transmission peak with efficiency up to 92%, the linewidth of only 0.14 nm and an excellent out of band rejection. The unexpected optical behavior considering metal loss is consistent with that of electromagnetic induced transparency, arising from the destructive interference of super-radiative nanowire dipolar mode and transversal magnetic waveguide mode. Furthermore, for slow light application, the designed plasmonic-waveguide structure has a high group index of approximately 1.2 × 105 at the maximum of the transmission band. In sensing application, its lowest sensing figure of merit is achieved up to 8500 due to the ultra-narrow linewidth of the transmission band. This work provides a valuable photonics design for developing high performance nano-photonic devices.
format	article
author	Li Yu Yuzhang Liang Shuwen Chu Huixuan Gao Qiao Wang Wei Peng
author_facet	Li Yu Yuzhang Liang Shuwen Chu Huixuan Gao Qiao Wang Wei Peng
author_sort	Li Yu
title	Freestanding bilayer plasmonic waveguide coupling mechanism for ultranarrow electromagnetic-induced transparency band generation
title_short	Freestanding bilayer plasmonic waveguide coupling mechanism for ultranarrow electromagnetic-induced transparency band generation
title_full	Freestanding bilayer plasmonic waveguide coupling mechanism for ultranarrow electromagnetic-induced transparency band generation
title_fullStr	Freestanding bilayer plasmonic waveguide coupling mechanism for ultranarrow electromagnetic-induced transparency band generation
title_full_unstemmed	Freestanding bilayer plasmonic waveguide coupling mechanism for ultranarrow electromagnetic-induced transparency band generation
title_sort	freestanding bilayer plasmonic waveguide coupling mechanism for ultranarrow electromagnetic-induced transparency band generation
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/2901c200f3a745ee850f92c9f657d61a
work_keys_str_mv	AT liyu freestandingbilayerplasmonicwaveguidecouplingmechanismforultranarrowelectromagneticinducedtransparencybandgeneration AT yuzhangliang freestandingbilayerplasmonicwaveguidecouplingmechanismforultranarrowelectromagneticinducedtransparencybandgeneration AT shuwenchu freestandingbilayerplasmonicwaveguidecouplingmechanismforultranarrowelectromagneticinducedtransparencybandgeneration AT huixuangao freestandingbilayerplasmonicwaveguidecouplingmechanismforultranarrowelectromagneticinducedtransparencybandgeneration AT qiaowang freestandingbilayerplasmonicwaveguidecouplingmechanismforultranarrowelectromagneticinducedtransparencybandgeneration AT weipeng freestandingbilayerplasmonicwaveguidecouplingmechanismforultranarrowelectromagneticinducedtransparencybandgeneration
_version_	1718387313729339392

Freestanding bilayer plasmonic waveguide coupling mechanism for ultranarrow electromagnetic-induced transparency band generation

Ejemplares similares