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Design and Fabrication of a Triple-Band Terahertz Metamaterial Absorber
We presented and manufactured a triple-band terahertz (THz) metamaterial absorber with three concentric square ring metallic resonators, a polyethylene terephthalate (PET) layer, and a metallic substrate. The simulation results demonstrate that the absorptivity of 99.5%, 86.4%, and 98.4% can be achi...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8146610/ https://www.ncbi.nlm.nih.gov/pubmed/33922986 http://dx.doi.org/10.3390/nano11051110 |
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author | Wang, Jinfeng Lang, Tingting Hong, Zhi Xiao, Meiyu Yu, Jing |
author_facet | Wang, Jinfeng Lang, Tingting Hong, Zhi Xiao, Meiyu Yu, Jing |
author_sort | Wang, Jinfeng |
collection | PubMed |
description | We presented and manufactured a triple-band terahertz (THz) metamaterial absorber with three concentric square ring metallic resonators, a polyethylene terephthalate (PET) layer, and a metallic substrate. The simulation results demonstrate that the absorptivity of 99.5%, 86.4%, and 98.4% can be achieved at resonant frequency of 0.337, 0.496, and 0.718 THz, respectively. The experimental results show three distinct absorption peaks at 0.366, 0.512, and 0.751 THz, which is mostly agreement with the simulation. We analyzed the absorption mechanism from the distribution of electric and magnetic fields. The sensitivity of the three peaks of this triple-band absorber to the surrounding is 72, 103.5, 139.5 GHz/RIU, respectively. In addition, the absorber is polarization insensitive because of the symmetric configuration. The absorber can simultaneously exhibit high absorption effect at incident angles up to 60° for transverse electric (TE) polarization and 70° for transverse magnetic (TM) polarization. This presented terahertz metamaterial absorber with a triple-band absorption and easy fabrication can find important applications in biological sensing, THz imaging, filter and optical communication. |
format | Online Article Text |
id | pubmed-8146610 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-81466102021-05-26 Design and Fabrication of a Triple-Band Terahertz Metamaterial Absorber Wang, Jinfeng Lang, Tingting Hong, Zhi Xiao, Meiyu Yu, Jing Nanomaterials (Basel) Article We presented and manufactured a triple-band terahertz (THz) metamaterial absorber with three concentric square ring metallic resonators, a polyethylene terephthalate (PET) layer, and a metallic substrate. The simulation results demonstrate that the absorptivity of 99.5%, 86.4%, and 98.4% can be achieved at resonant frequency of 0.337, 0.496, and 0.718 THz, respectively. The experimental results show three distinct absorption peaks at 0.366, 0.512, and 0.751 THz, which is mostly agreement with the simulation. We analyzed the absorption mechanism from the distribution of electric and magnetic fields. The sensitivity of the three peaks of this triple-band absorber to the surrounding is 72, 103.5, 139.5 GHz/RIU, respectively. In addition, the absorber is polarization insensitive because of the symmetric configuration. The absorber can simultaneously exhibit high absorption effect at incident angles up to 60° for transverse electric (TE) polarization and 70° for transverse magnetic (TM) polarization. This presented terahertz metamaterial absorber with a triple-band absorption and easy fabrication can find important applications in biological sensing, THz imaging, filter and optical communication. MDPI 2021-04-25 /pmc/articles/PMC8146610/ /pubmed/33922986 http://dx.doi.org/10.3390/nano11051110 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Wang, Jinfeng Lang, Tingting Hong, Zhi Xiao, Meiyu Yu, Jing Design and Fabrication of a Triple-Band Terahertz Metamaterial Absorber |
title | Design and Fabrication of a Triple-Band Terahertz Metamaterial Absorber |
title_full | Design and Fabrication of a Triple-Band Terahertz Metamaterial Absorber |
title_fullStr | Design and Fabrication of a Triple-Band Terahertz Metamaterial Absorber |
title_full_unstemmed | Design and Fabrication of a Triple-Band Terahertz Metamaterial Absorber |
title_short | Design and Fabrication of a Triple-Band Terahertz Metamaterial Absorber |
title_sort | design and fabrication of a triple-band terahertz metamaterial absorber |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8146610/ https://www.ncbi.nlm.nih.gov/pubmed/33922986 http://dx.doi.org/10.3390/nano11051110 |
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