Dynamically controllable plasmon induced transparency based on hybrid metal-graphene metamaterials

Abstract Novel hybrid metal-graphene metamaterials featuring dynamically controllable single, double and multiple plasmon induced transparency (PIT) windows are numerically explored in the terahertz (THz) regime. The designed plasmonic metamaterials composed of a strip and a ring with graphene integ...

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Autores principales:	Xicheng Yan, Tao Wang, Shuyuan Xiao, Tingting Liu, Haowen Hou, Le Cheng, Xiaoyun Jiang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/e85689c4ed15456997b43de5412ea9e6
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spelling	oai:doaj.org-article:e85689c4ed15456997b43de5412ea9e62021-12-02T15:06:16ZDynamically controllable plasmon induced transparency based on hybrid metal-graphene metamaterials10.1038/s41598-017-14328-62045-2322https://doaj.org/article/e85689c4ed15456997b43de5412ea9e62017-10-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-14328-6https://doaj.org/toc/2045-2322Abstract Novel hybrid metal-graphene metamaterials featuring dynamically controllable single, double and multiple plasmon induced transparency (PIT) windows are numerically explored in the terahertz (THz) regime. The designed plasmonic metamaterials composed of a strip and a ring with graphene integration generate a novel PIT window. Once the ring is divided into pairs of asymmetrical arcs, double PIT windows both with the spectral contrast ratio 100% are obtained, where one originates from the destructive interference between bright-dark modes, and the other is based on the interaction of bright-bright modes. Just because the double PIT windows are induced by two different mechanisms, the continuously controllable conductivity and damping of graphene are employed to appropriately interpret the high tunability in double transparency peaks at the resonant frequency, respectively. Moreover, multiple PIT windows can be achieved by introducing an additional bright mode to form the other bright-bright modes coupling. At the PIT transparent windows, the dispersions undergo tremendous modifications and the group delays reach up to 43 ps, 22 ps, and 25 ps, correspondingly. Our results suggest the existence of strong interaction between the monolayer graphene layer and metal-based resonant plasmonic metamaterials, which may hold widely applications in filters, modulators, switching, sensors and optical buffers.Xicheng YanTao WangShuyuan XiaoTingting LiuHaowen HouLe ChengXiaoyun JiangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-10 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Xicheng Yan Tao Wang Shuyuan Xiao Tingting Liu Haowen Hou Le Cheng Xiaoyun Jiang Dynamically controllable plasmon induced transparency based on hybrid metal-graphene metamaterials
description	Abstract Novel hybrid metal-graphene metamaterials featuring dynamically controllable single, double and multiple plasmon induced transparency (PIT) windows are numerically explored in the terahertz (THz) regime. The designed plasmonic metamaterials composed of a strip and a ring with graphene integration generate a novel PIT window. Once the ring is divided into pairs of asymmetrical arcs, double PIT windows both with the spectral contrast ratio 100% are obtained, where one originates from the destructive interference between bright-dark modes, and the other is based on the interaction of bright-bright modes. Just because the double PIT windows are induced by two different mechanisms, the continuously controllable conductivity and damping of graphene are employed to appropriately interpret the high tunability in double transparency peaks at the resonant frequency, respectively. Moreover, multiple PIT windows can be achieved by introducing an additional bright mode to form the other bright-bright modes coupling. At the PIT transparent windows, the dispersions undergo tremendous modifications and the group delays reach up to 43 ps, 22 ps, and 25 ps, correspondingly. Our results suggest the existence of strong interaction between the monolayer graphene layer and metal-based resonant plasmonic metamaterials, which may hold widely applications in filters, modulators, switching, sensors and optical buffers.
format	article
author	Xicheng Yan Tao Wang Shuyuan Xiao Tingting Liu Haowen Hou Le Cheng Xiaoyun Jiang
author_facet	Xicheng Yan Tao Wang Shuyuan Xiao Tingting Liu Haowen Hou Le Cheng Xiaoyun Jiang
author_sort	Xicheng Yan
title	Dynamically controllable plasmon induced transparency based on hybrid metal-graphene metamaterials
title_short	Dynamically controllable plasmon induced transparency based on hybrid metal-graphene metamaterials
title_full	Dynamically controllable plasmon induced transparency based on hybrid metal-graphene metamaterials
title_fullStr	Dynamically controllable plasmon induced transparency based on hybrid metal-graphene metamaterials
title_full_unstemmed	Dynamically controllable plasmon induced transparency based on hybrid metal-graphene metamaterials
title_sort	dynamically controllable plasmon induced transparency based on hybrid metal-graphene metamaterials
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/e85689c4ed15456997b43de5412ea9e6
work_keys_str_mv	AT xichengyan dynamicallycontrollableplasmoninducedtransparencybasedonhybridmetalgraphenemetamaterials AT taowang dynamicallycontrollableplasmoninducedtransparencybasedonhybridmetalgraphenemetamaterials AT shuyuanxiao dynamicallycontrollableplasmoninducedtransparencybasedonhybridmetalgraphenemetamaterials AT tingtingliu dynamicallycontrollableplasmoninducedtransparencybasedonhybridmetalgraphenemetamaterials AT haowenhou dynamicallycontrollableplasmoninducedtransparencybasedonhybridmetalgraphenemetamaterials AT lecheng dynamicallycontrollableplasmoninducedtransparencybasedonhybridmetalgraphenemetamaterials AT xiaoyunjiang dynamicallycontrollableplasmoninducedtransparencybasedonhybridmetalgraphenemetamaterials
_version_	1718388551907803136

Dynamically controllable plasmon induced transparency based on hybrid metal-graphene metamaterials

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