Terahertz Radiation from Combined Metallic Slit Arrays

We report an approach to efficiently generate terahertz radiation from a combined periodic structure. The proposed configuration is composed of two metallic slit arrays deliberately designed with different periodic length, slit width and depth. We found that the combination of the two slit arrays co...

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Autores principales: Li, Dazhi, Nakajima, Makoto, Tani, Masahiko, Yang, Jinfeng, Kitahara, Hideaki, Hashida, Masaki, Asakawa, Makoto, Liu, Wenxin, Wei, Yanyu, Yang, Ziqiang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6497660/
https://www.ncbi.nlm.nih.gov/pubmed/31048737
http://dx.doi.org/10.1038/s41598-019-43072-2
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author Li, Dazhi
Nakajima, Makoto
Tani, Masahiko
Yang, Jinfeng
Kitahara, Hideaki
Hashida, Masaki
Asakawa, Makoto
Liu, Wenxin
Wei, Yanyu
Yang, Ziqiang
author_facet Li, Dazhi
Nakajima, Makoto
Tani, Masahiko
Yang, Jinfeng
Kitahara, Hideaki
Hashida, Masaki
Asakawa, Makoto
Liu, Wenxin
Wei, Yanyu
Yang, Ziqiang
author_sort Li, Dazhi
collection PubMed
description We report an approach to efficiently generate terahertz radiation from a combined periodic structure. The proposed configuration is composed of two metallic slit arrays deliberately designed with different periodic length, slit width and depth. We found that the combination of the two slit arrays could provide special electromagnetic modes, which exhibit nonradiative property above the surface of one slit array and radiative property inside the other one. An electron beam holding proper energy could resonate with those modes to generate strong and directional electromagnetic radiations in the terahertz regime, indicating that the approach has the potential in developing high-performance terahertz radiation sources.
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spelling pubmed-64976602019-05-17 Terahertz Radiation from Combined Metallic Slit Arrays Li, Dazhi Nakajima, Makoto Tani, Masahiko Yang, Jinfeng Kitahara, Hideaki Hashida, Masaki Asakawa, Makoto Liu, Wenxin Wei, Yanyu Yang, Ziqiang Sci Rep Article We report an approach to efficiently generate terahertz radiation from a combined periodic structure. The proposed configuration is composed of two metallic slit arrays deliberately designed with different periodic length, slit width and depth. We found that the combination of the two slit arrays could provide special electromagnetic modes, which exhibit nonradiative property above the surface of one slit array and radiative property inside the other one. An electron beam holding proper energy could resonate with those modes to generate strong and directional electromagnetic radiations in the terahertz regime, indicating that the approach has the potential in developing high-performance terahertz radiation sources. Nature Publishing Group UK 2019-05-02 /pmc/articles/PMC6497660/ /pubmed/31048737 http://dx.doi.org/10.1038/s41598-019-43072-2 Text en © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Li, Dazhi
Nakajima, Makoto
Tani, Masahiko
Yang, Jinfeng
Kitahara, Hideaki
Hashida, Masaki
Asakawa, Makoto
Liu, Wenxin
Wei, Yanyu
Yang, Ziqiang
Terahertz Radiation from Combined Metallic Slit Arrays
title Terahertz Radiation from Combined Metallic Slit Arrays
title_full Terahertz Radiation from Combined Metallic Slit Arrays
title_fullStr Terahertz Radiation from Combined Metallic Slit Arrays
title_full_unstemmed Terahertz Radiation from Combined Metallic Slit Arrays
title_short Terahertz Radiation from Combined Metallic Slit Arrays
title_sort terahertz radiation from combined metallic slit arrays
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6497660/
https://www.ncbi.nlm.nih.gov/pubmed/31048737
http://dx.doi.org/10.1038/s41598-019-43072-2
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