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Reverse Design of On-Chip Terahertz Demultiplexers

The reverse design method (RDM) is a frontier direction in the optical research field. In this work, RDM is applied to the design of terahertz demultiplexers, including two-port and three-port terahertz demultiplexers, with areas of 3 mm × 3 mm and 5 mm × 5 mm, respectively. The Finite-Difference Ti...

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Autores principales: Zhu, Guofeng, Huang, Feng, Dai, Zhenrong, Ju, Xuewei, Zhong, Shuncong, Wang, Xiangfeng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8472158/
https://www.ncbi.nlm.nih.gov/pubmed/34577736
http://dx.doi.org/10.3390/mi12091093
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author Zhu, Guofeng
Huang, Feng
Dai, Zhenrong
Ju, Xuewei
Zhong, Shuncong
Wang, Xiangfeng
author_facet Zhu, Guofeng
Huang, Feng
Dai, Zhenrong
Ju, Xuewei
Zhong, Shuncong
Wang, Xiangfeng
author_sort Zhu, Guofeng
collection PubMed
description The reverse design method (RDM) is a frontier direction in the optical research field. In this work, RDM is applied to the design of terahertz demultiplexers, including two-port and three-port terahertz demultiplexers, with areas of 3 mm × 3 mm and 5 mm × 5 mm, respectively. The Finite-Difference Time-Domain (FDTD) simulation results show that the terahertz waves at frequencies of 0.5 THz and 0.417 THz can be well separated by the two-port demultiplexer, and the transmittances of the two outputs reach as high as 0.75 after bandwidth optimization. Meanwhile, the three-port terahertz demultiplexer can have terahertz waves separated from three Ports, and the crosstalk between adjacent channels is less than −18 dB.
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spelling pubmed-84721582021-09-28 Reverse Design of On-Chip Terahertz Demultiplexers Zhu, Guofeng Huang, Feng Dai, Zhenrong Ju, Xuewei Zhong, Shuncong Wang, Xiangfeng Micromachines (Basel) Article The reverse design method (RDM) is a frontier direction in the optical research field. In this work, RDM is applied to the design of terahertz demultiplexers, including two-port and three-port terahertz demultiplexers, with areas of 3 mm × 3 mm and 5 mm × 5 mm, respectively. The Finite-Difference Time-Domain (FDTD) simulation results show that the terahertz waves at frequencies of 0.5 THz and 0.417 THz can be well separated by the two-port demultiplexer, and the transmittances of the two outputs reach as high as 0.75 after bandwidth optimization. Meanwhile, the three-port terahertz demultiplexer can have terahertz waves separated from three Ports, and the crosstalk between adjacent channels is less than −18 dB. MDPI 2021-09-10 /pmc/articles/PMC8472158/ /pubmed/34577736 http://dx.doi.org/10.3390/mi12091093 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
Zhu, Guofeng
Huang, Feng
Dai, Zhenrong
Ju, Xuewei
Zhong, Shuncong
Wang, Xiangfeng
Reverse Design of On-Chip Terahertz Demultiplexers
title Reverse Design of On-Chip Terahertz Demultiplexers
title_full Reverse Design of On-Chip Terahertz Demultiplexers
title_fullStr Reverse Design of On-Chip Terahertz Demultiplexers
title_full_unstemmed Reverse Design of On-Chip Terahertz Demultiplexers
title_short Reverse Design of On-Chip Terahertz Demultiplexers
title_sort reverse design of on-chip terahertz demultiplexers
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8472158/
https://www.ncbi.nlm.nih.gov/pubmed/34577736
http://dx.doi.org/10.3390/mi12091093
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