Surface wave manipulation by plasmonic metasurface based on mode resonance

Abstract We proposed a method to manipulate the surface waves with a deep subwavelength metasurface by applying resonators with interfering mode resonance. The simulation results demonstrate that a single deep subwavelength obstructed groove can effectively control the propagation of surface teraher...

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Autor principal:	Baoshan Guo
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/2386c212465a41f6be27d6de3fa17aae
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spelling	oai:doaj.org-article:2386c212465a41f6be27d6de3fa17aae2021-12-02T12:09:26ZSurface wave manipulation by plasmonic metasurface based on mode resonance10.1038/s41598-021-82948-02045-2322https://doaj.org/article/2386c212465a41f6be27d6de3fa17aae2021-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-82948-0https://doaj.org/toc/2045-2322Abstract We proposed a method to manipulate the surface waves with a deep subwavelength metasurface by applying resonators with interfering mode resonance. The simulation results demonstrate that a single deep subwavelength obstructed groove can effectively control the propagation of surface terahertz (THz) waves by a small step increase (< 1/20 λ) of the depth or a slight change of refractive index (Δn = 0.1). The surface waves transmitted and reflected by the single groove can be controlled periodically by increasing the groove depth or refractive index with a high efficiency owing to the mode resonance between surface spoof plasmonics modes and groove cavity modes. The generated circle resonance mode provides a new idea for the development of THz devices. Importantly, the transmitted or reflected intensity of the surface wave is also enhanced by the Mode resonance. It is a simple and effective method to operate surface THz waves and manufacture more compact integrated optical devices in deep subwavelength scale.Baoshan GuoNature 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 Baoshan Guo Surface wave manipulation by plasmonic metasurface based on mode resonance
description	Abstract We proposed a method to manipulate the surface waves with a deep subwavelength metasurface by applying resonators with interfering mode resonance. The simulation results demonstrate that a single deep subwavelength obstructed groove can effectively control the propagation of surface terahertz (THz) waves by a small step increase (< 1/20 λ) of the depth or a slight change of refractive index (Δn = 0.1). The surface waves transmitted and reflected by the single groove can be controlled periodically by increasing the groove depth or refractive index with a high efficiency owing to the mode resonance between surface spoof plasmonics modes and groove cavity modes. The generated circle resonance mode provides a new idea for the development of THz devices. Importantly, the transmitted or reflected intensity of the surface wave is also enhanced by the Mode resonance. It is a simple and effective method to operate surface THz waves and manufacture more compact integrated optical devices in deep subwavelength scale.
format	article
author	Baoshan Guo
author_facet	Baoshan Guo
author_sort	Baoshan Guo
title	Surface wave manipulation by plasmonic metasurface based on mode resonance
title_short	Surface wave manipulation by plasmonic metasurface based on mode resonance
title_full	Surface wave manipulation by plasmonic metasurface based on mode resonance
title_fullStr	Surface wave manipulation by plasmonic metasurface based on mode resonance
title_full_unstemmed	Surface wave manipulation by plasmonic metasurface based on mode resonance
title_sort	surface wave manipulation by plasmonic metasurface based on mode resonance
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/2386c212465a41f6be27d6de3fa17aae
work_keys_str_mv	AT baoshanguo surfacewavemanipulationbyplasmonicmetasurfacebasedonmoderesonance
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Surface wave manipulation by plasmonic metasurface based on mode resonance

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