Study of THz-Plasmon hybridization of a loop Yagi-Uda absorber

In this article we present a three-dimensional loop Yagi-Uda array for efficient, polarization independent and directional absorption of THz radiation over a narrow frequency range (f(0) = 0.657 THz & Q factor = 7.5). Unit cell of the array consists of three vertically stacked gold micro rings s...

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Autores principales: Pattanayak, Arnab, Roy, Sandipta, Rana, Goutam, Duttagupta, Siddhartha P., Achanta, Venu Gopal, Prabhu, S. S.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5717262/
https://www.ncbi.nlm.nih.gov/pubmed/29209033
http://dx.doi.org/10.1038/s41598-017-17311-3
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author Pattanayak, Arnab
Roy, Sandipta
Rana, Goutam
Duttagupta, Siddhartha P.
Achanta, Venu Gopal
Prabhu, S. S.
author_facet Pattanayak, Arnab
Roy, Sandipta
Rana, Goutam
Duttagupta, Siddhartha P.
Achanta, Venu Gopal
Prabhu, S. S.
author_sort Pattanayak, Arnab
collection PubMed
description In this article we present a three-dimensional loop Yagi-Uda array for efficient, polarization independent and directional absorption of THz radiation over a narrow frequency range (f(0) = 0.657 THz & Q factor = 7.5). Unit cell of the array consists of three vertically stacked gold micro rings separated from each other by 30 µm thick SU-8 layers. The proposed array also exhibits a filtering response in its transmittance spectrum. The characteristics are explained by plasmon hybridization method. The transmission, reflection and absorption spectra of the structure are measured and they show a good agreement with corresponding simulated results.
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spelling pubmed-57172622017-12-08 Study of THz-Plasmon hybridization of a loop Yagi-Uda absorber Pattanayak, Arnab Roy, Sandipta Rana, Goutam Duttagupta, Siddhartha P. Achanta, Venu Gopal Prabhu, S. S. Sci Rep Article In this article we present a three-dimensional loop Yagi-Uda array for efficient, polarization independent and directional absorption of THz radiation over a narrow frequency range (f(0) = 0.657 THz & Q factor = 7.5). Unit cell of the array consists of three vertically stacked gold micro rings separated from each other by 30 µm thick SU-8 layers. The proposed array also exhibits a filtering response in its transmittance spectrum. The characteristics are explained by plasmon hybridization method. The transmission, reflection and absorption spectra of the structure are measured and they show a good agreement with corresponding simulated results. Nature Publishing Group UK 2017-12-05 /pmc/articles/PMC5717262/ /pubmed/29209033 http://dx.doi.org/10.1038/s41598-017-17311-3 Text en © The Author(s) 2017 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
Pattanayak, Arnab
Roy, Sandipta
Rana, Goutam
Duttagupta, Siddhartha P.
Achanta, Venu Gopal
Prabhu, S. S.
Study of THz-Plasmon hybridization of a loop Yagi-Uda absorber
title Study of THz-Plasmon hybridization of a loop Yagi-Uda absorber
title_full Study of THz-Plasmon hybridization of a loop Yagi-Uda absorber
title_fullStr Study of THz-Plasmon hybridization of a loop Yagi-Uda absorber
title_full_unstemmed Study of THz-Plasmon hybridization of a loop Yagi-Uda absorber
title_short Study of THz-Plasmon hybridization of a loop Yagi-Uda absorber
title_sort study of thz-plasmon hybridization of a loop yagi-uda absorber
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5717262/
https://www.ncbi.nlm.nih.gov/pubmed/29209033
http://dx.doi.org/10.1038/s41598-017-17311-3
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