High-efficiency chirality-modulated spoof surface plasmon meta-coupler

Abstract Efficiently exciting surface plasmon polaritons (SPP) is highly desired in many photonic applications, but most approaches (such as prism and grating couplers) cannot control flexibly their SPP excitation directions. While Pancharatnam-Berry (PB) metasurfaces were recently proposed to achie...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Jingwen Duan, Huijie Guo, Shaohua Dong, Tong Cai, Weijie Luo, Zhongzhu Liang, Qiong He, Lei Zhou, Shulin Sun
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/f0b8a52feb0a4227b83ccf9d3d0f46e5
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:f0b8a52feb0a4227b83ccf9d3d0f46e5
record_format	dspace
spelling	oai:doaj.org-article:f0b8a52feb0a4227b83ccf9d3d0f46e52021-12-02T12:32:24ZHigh-efficiency chirality-modulated spoof surface plasmon meta-coupler10.1038/s41598-017-01664-w2045-2322https://doaj.org/article/f0b8a52feb0a4227b83ccf9d3d0f46e52017-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-01664-whttps://doaj.org/toc/2045-2322Abstract Efficiently exciting surface plasmon polaritons (SPP) is highly desired in many photonic applications, but most approaches (such as prism and grating couplers) cannot control flexibly their SPP excitation directions. While Pancharatnam-Berry (PB) metasurfaces were recently proposed to achieve direction-controllable SPP excitations, such scheme suffers from low-efficiency issue due to both direct reflections at the coupler surface and the mode mismatch between the coupler and the guiding-out plasmonic structure. In this article, we solve these issues via imposing two criterions to guide design both the metasurface and the plasmonic metal, based on which a direction-controllable SPP excitation with very high efficiency can be realized. As a proof of concept, we designed/fabricated a realistic device working in the microwave regime, and performed both near-field and far-field measurements to demonstrate that it can achieve an spoof SPP conversion efficiency ~78%, much higher than previous devices. Full-wave simulations are in good agreement with experiments, showing that the efficiency can be further pushed to 92% with optimized designs. Our findings can stimulate spoof SPP-related applications, particularly can help enhance the spin-dependent light-matter interactions in low frequency regime.Jingwen DuanHuijie GuoShaohua DongTong CaiWeijie LuoZhongzhu LiangQiong HeLei ZhouShulin SunNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jingwen Duan Huijie Guo Shaohua Dong Tong Cai Weijie Luo Zhongzhu Liang Qiong He Lei Zhou Shulin Sun High-efficiency chirality-modulated spoof surface plasmon meta-coupler
description	Abstract Efficiently exciting surface plasmon polaritons (SPP) is highly desired in many photonic applications, but most approaches (such as prism and grating couplers) cannot control flexibly their SPP excitation directions. While Pancharatnam-Berry (PB) metasurfaces were recently proposed to achieve direction-controllable SPP excitations, such scheme suffers from low-efficiency issue due to both direct reflections at the coupler surface and the mode mismatch between the coupler and the guiding-out plasmonic structure. In this article, we solve these issues via imposing two criterions to guide design both the metasurface and the plasmonic metal, based on which a direction-controllable SPP excitation with very high efficiency can be realized. As a proof of concept, we designed/fabricated a realistic device working in the microwave regime, and performed both near-field and far-field measurements to demonstrate that it can achieve an spoof SPP conversion efficiency ~78%, much higher than previous devices. Full-wave simulations are in good agreement with experiments, showing that the efficiency can be further pushed to 92% with optimized designs. Our findings can stimulate spoof SPP-related applications, particularly can help enhance the spin-dependent light-matter interactions in low frequency regime.
format	article
author	Jingwen Duan Huijie Guo Shaohua Dong Tong Cai Weijie Luo Zhongzhu Liang Qiong He Lei Zhou Shulin Sun
author_facet	Jingwen Duan Huijie Guo Shaohua Dong Tong Cai Weijie Luo Zhongzhu Liang Qiong He Lei Zhou Shulin Sun
author_sort	Jingwen Duan
title	High-efficiency chirality-modulated spoof surface plasmon meta-coupler
title_short	High-efficiency chirality-modulated spoof surface plasmon meta-coupler
title_full	High-efficiency chirality-modulated spoof surface plasmon meta-coupler
title_fullStr	High-efficiency chirality-modulated spoof surface plasmon meta-coupler
title_full_unstemmed	High-efficiency chirality-modulated spoof surface plasmon meta-coupler
title_sort	high-efficiency chirality-modulated spoof surface plasmon meta-coupler
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/f0b8a52feb0a4227b83ccf9d3d0f46e5
work_keys_str_mv	AT jingwenduan highefficiencychiralitymodulatedspoofsurfaceplasmonmetacoupler AT huijieguo highefficiencychiralitymodulatedspoofsurfaceplasmonmetacoupler AT shaohuadong highefficiencychiralitymodulatedspoofsurfaceplasmonmetacoupler AT tongcai highefficiencychiralitymodulatedspoofsurfaceplasmonmetacoupler AT weijieluo highefficiencychiralitymodulatedspoofsurfaceplasmonmetacoupler AT zhongzhuliang highefficiencychiralitymodulatedspoofsurfaceplasmonmetacoupler AT qionghe highefficiencychiralitymodulatedspoofsurfaceplasmonmetacoupler AT leizhou highefficiencychiralitymodulatedspoofsurfaceplasmonmetacoupler AT shulinsun highefficiencychiralitymodulatedspoofsurfaceplasmonmetacoupler
_version_	1718394130982240256

High-efficiency chirality-modulated spoof surface plasmon meta-coupler

Ejemplares similares