Localized Spoof Surface Plasmons based on Closed Subwavelength High Contrast Gratings: Concept and Microwave-Regime Realizations

In this work, we report the existence of spoof localized surface plasmons (spoof-LSPs) arising with closed high contrast gratings (HCGs) at deep subwavelength scales, another platform for field localization at microwave frequencies. The HCGs are in the form of a periodic array of radial dielectric b...

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Autores principales: Li, Zhuo, Xu, Bingzheng, Liu, Liangliang, Xu, Jia, Chen, Chen, Gu, Changqing, Zhou, Yongjin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4890028/
https://www.ncbi.nlm.nih.gov/pubmed/27251026
http://dx.doi.org/10.1038/srep27158
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author Li, Zhuo
Xu, Bingzheng
Liu, Liangliang
Xu, Jia
Chen, Chen
Gu, Changqing
Zhou, Yongjin
author_facet Li, Zhuo
Xu, Bingzheng
Liu, Liangliang
Xu, Jia
Chen, Chen
Gu, Changqing
Zhou, Yongjin
author_sort Li, Zhuo
collection PubMed
description In this work, we report the existence of spoof localized surface plasmons (spoof-LSPs) arising with closed high contrast gratings (HCGs) at deep subwavelength scales, another platform for field localization at microwave frequencies. The HCGs are in the form of a periodic array of radial dielectric blocks with high permittivity around a metal core supporting spoof-LSPs of transverse magnetic (TM) form. Simulation results validate the phenomenon and a metamaterial approach is also given to capture all the resonant features of this kind of spoof-LSPs. In addition, experimental verification of the existence of spoof-LSPs supported by a three dimensional (3D) HCGs resonance structure in the microwave regime is presented. This work expands the original spoof-LSPs theory and opens up a new avenue for obtaining resonance devices in the microwave frequencies.
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spelling pubmed-48900282016-06-09 Localized Spoof Surface Plasmons based on Closed Subwavelength High Contrast Gratings: Concept and Microwave-Regime Realizations Li, Zhuo Xu, Bingzheng Liu, Liangliang Xu, Jia Chen, Chen Gu, Changqing Zhou, Yongjin Sci Rep Article In this work, we report the existence of spoof localized surface plasmons (spoof-LSPs) arising with closed high contrast gratings (HCGs) at deep subwavelength scales, another platform for field localization at microwave frequencies. The HCGs are in the form of a periodic array of radial dielectric blocks with high permittivity around a metal core supporting spoof-LSPs of transverse magnetic (TM) form. Simulation results validate the phenomenon and a metamaterial approach is also given to capture all the resonant features of this kind of spoof-LSPs. In addition, experimental verification of the existence of spoof-LSPs supported by a three dimensional (3D) HCGs resonance structure in the microwave regime is presented. This work expands the original spoof-LSPs theory and opens up a new avenue for obtaining resonance devices in the microwave frequencies. Nature Publishing Group 2016-06-02 /pmc/articles/PMC4890028/ /pubmed/27251026 http://dx.doi.org/10.1038/srep27158 Text en Copyright © 2016, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Li, Zhuo
Xu, Bingzheng
Liu, Liangliang
Xu, Jia
Chen, Chen
Gu, Changqing
Zhou, Yongjin
Localized Spoof Surface Plasmons based on Closed Subwavelength High Contrast Gratings: Concept and Microwave-Regime Realizations
title Localized Spoof Surface Plasmons based on Closed Subwavelength High Contrast Gratings: Concept and Microwave-Regime Realizations
title_full Localized Spoof Surface Plasmons based on Closed Subwavelength High Contrast Gratings: Concept and Microwave-Regime Realizations
title_fullStr Localized Spoof Surface Plasmons based on Closed Subwavelength High Contrast Gratings: Concept and Microwave-Regime Realizations
title_full_unstemmed Localized Spoof Surface Plasmons based on Closed Subwavelength High Contrast Gratings: Concept and Microwave-Regime Realizations
title_short Localized Spoof Surface Plasmons based on Closed Subwavelength High Contrast Gratings: Concept and Microwave-Regime Realizations
title_sort localized spoof surface plasmons based on closed subwavelength high contrast gratings: concept and microwave-regime realizations
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4890028/
https://www.ncbi.nlm.nih.gov/pubmed/27251026
http://dx.doi.org/10.1038/srep27158
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