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Programmable VO(2) metasurface for terahertz wave beam steering
Programmable vanadium dioxide (VO(2)) metasurface is proposed at THz frequencies. The insulating and metallic states of VO(2) can be switched via external electrical stimulation, resulting in the dynamical modulation of electromagnetic response. The voltages of different columns of the metasurface c...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9382261/ https://www.ncbi.nlm.nih.gov/pubmed/35992076 http://dx.doi.org/10.1016/j.isci.2022.104824 |
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author | Yang, Daquan Wang, Weiguang Lv, Erpeng Wang, Haiming Liu, Bingchao Hou, Yanzhao Chen, Jin-hui |
author_facet | Yang, Daquan Wang, Weiguang Lv, Erpeng Wang, Haiming Liu, Bingchao Hou, Yanzhao Chen, Jin-hui |
author_sort | Yang, Daquan |
collection | PubMed |
description | Programmable vanadium dioxide (VO(2)) metasurface is proposed at THz frequencies. The insulating and metallic states of VO(2) can be switched via external electrical stimulation, resulting in the dynamical modulation of electromagnetic response. The voltages of different columns of the metasurface can be controlled by the field-programmable gate array, and thus the phase gradients are realized for THz beam steering. In 1-bit coding, we design periodic and nonperiodic 24 × 24 coding sequences, and achieve wide-angle beam scanning with the deflection angles from −60° to +60°. In 2-bit coding, we use two different meta-atoms to design 18 × 18 coding sequences. Compared with 1-bit coding, 2-bit coding has more degree of freedom to control the optical phase, and 3 dB diffraction efficiency is improved by generating a single deflection angle. The proposed programmable metasurfaces provide a promising platform for manipulating electromagnetic wave in 6G wireless communication. |
format | Online Article Text |
id | pubmed-9382261 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Elsevier |
record_format | MEDLINE/PubMed |
spelling | pubmed-93822612022-08-18 Programmable VO(2) metasurface for terahertz wave beam steering Yang, Daquan Wang, Weiguang Lv, Erpeng Wang, Haiming Liu, Bingchao Hou, Yanzhao Chen, Jin-hui iScience Article Programmable vanadium dioxide (VO(2)) metasurface is proposed at THz frequencies. The insulating and metallic states of VO(2) can be switched via external electrical stimulation, resulting in the dynamical modulation of electromagnetic response. The voltages of different columns of the metasurface can be controlled by the field-programmable gate array, and thus the phase gradients are realized for THz beam steering. In 1-bit coding, we design periodic and nonperiodic 24 × 24 coding sequences, and achieve wide-angle beam scanning with the deflection angles from −60° to +60°. In 2-bit coding, we use two different meta-atoms to design 18 × 18 coding sequences. Compared with 1-bit coding, 2-bit coding has more degree of freedom to control the optical phase, and 3 dB diffraction efficiency is improved by generating a single deflection angle. The proposed programmable metasurfaces provide a promising platform for manipulating electromagnetic wave in 6G wireless communication. Elsevier 2022-07-31 /pmc/articles/PMC9382261/ /pubmed/35992076 http://dx.doi.org/10.1016/j.isci.2022.104824 Text en © 2022 The Author(s) https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Article Yang, Daquan Wang, Weiguang Lv, Erpeng Wang, Haiming Liu, Bingchao Hou, Yanzhao Chen, Jin-hui Programmable VO(2) metasurface for terahertz wave beam steering |
title | Programmable VO(2) metasurface for terahertz wave beam steering |
title_full | Programmable VO(2) metasurface for terahertz wave beam steering |
title_fullStr | Programmable VO(2) metasurface for terahertz wave beam steering |
title_full_unstemmed | Programmable VO(2) metasurface for terahertz wave beam steering |
title_short | Programmable VO(2) metasurface for terahertz wave beam steering |
title_sort | programmable vo(2) metasurface for terahertz wave beam steering |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9382261/ https://www.ncbi.nlm.nih.gov/pubmed/35992076 http://dx.doi.org/10.1016/j.isci.2022.104824 |
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