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High-order spoof localized surface plasmons supported on a complementary metallic spiral structure

We experimentally demonstrate that multiple high-order spoof localized surface plasmons (spoof-LSPs) modes can be supported on a complementary metallic spiral structure, which were absent in the previously reported spoof-LSPs modes. Through exact numerical simulations and near-field imaging experime...

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Detalles Bibliográficos
Autores principales: Gao, Zhen, Gao, Fei, Zhang, Baile
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4832191/
https://www.ncbi.nlm.nih.gov/pubmed/27079658
http://dx.doi.org/10.1038/srep24447
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author Gao, Zhen
Gao, Fei
Zhang, Baile
author_facet Gao, Zhen
Gao, Fei
Zhang, Baile
author_sort Gao, Zhen
collection PubMed
description We experimentally demonstrate that multiple high-order spoof localized surface plasmons (spoof-LSPs) modes can be supported on a complementary metallic spiral structure, which were absent in the previously reported spoof-LSPs modes. Through exact numerical simulations and near-field imaging experiments, we directly observe these high-order spoof-LSPs modes at microwave frequencies. We also show that these higher-order spoof-LSPs modes exhibit larger frequency shifts caused by the local environmental refractive index change than the previously reported low-order spoof-LSPs modes. Hence the complementary MSS may find potential applications as plasmonic sensor in the microwave and terahertz frequencies.
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spelling pubmed-48321912016-04-20 High-order spoof localized surface plasmons supported on a complementary metallic spiral structure Gao, Zhen Gao, Fei Zhang, Baile Sci Rep Article We experimentally demonstrate that multiple high-order spoof localized surface plasmons (spoof-LSPs) modes can be supported on a complementary metallic spiral structure, which were absent in the previously reported spoof-LSPs modes. Through exact numerical simulations and near-field imaging experiments, we directly observe these high-order spoof-LSPs modes at microwave frequencies. We also show that these higher-order spoof-LSPs modes exhibit larger frequency shifts caused by the local environmental refractive index change than the previously reported low-order spoof-LSPs modes. Hence the complementary MSS may find potential applications as plasmonic sensor in the microwave and terahertz frequencies. Nature Publishing Group 2016-04-15 /pmc/articles/PMC4832191/ /pubmed/27079658 http://dx.doi.org/10.1038/srep24447 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
Gao, Zhen
Gao, Fei
Zhang, Baile
High-order spoof localized surface plasmons supported on a complementary metallic spiral structure
title High-order spoof localized surface plasmons supported on a complementary metallic spiral structure
title_full High-order spoof localized surface plasmons supported on a complementary metallic spiral structure
title_fullStr High-order spoof localized surface plasmons supported on a complementary metallic spiral structure
title_full_unstemmed High-order spoof localized surface plasmons supported on a complementary metallic spiral structure
title_short High-order spoof localized surface plasmons supported on a complementary metallic spiral structure
title_sort high-order spoof localized surface plasmons supported on a complementary metallic spiral structure
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4832191/
https://www.ncbi.nlm.nih.gov/pubmed/27079658
http://dx.doi.org/10.1038/srep24447
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