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Reconfigurable honeycomb metamaterial absorber having incident angular stability

Ultrawide-angle electromagnetic wave absorbers with excellent mechanical properties are required in many diverse applications such as sensing, and stealth technologies. Here, a novel 3D reconfigurable metamaterial absorber (MMA) consisting of honeycomb and VO2 films is proposed. The proposed MMA exh...

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Detalles Bibliográficos
Autores principales: Shabanpour, Javad, Beyraghi, Sina, Oraizi, Homayoon
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7483420/
https://www.ncbi.nlm.nih.gov/pubmed/32913238
http://dx.doi.org/10.1038/s41598-020-72105-4
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author Shabanpour, Javad
Beyraghi, Sina
Oraizi, Homayoon
author_facet Shabanpour, Javad
Beyraghi, Sina
Oraizi, Homayoon
author_sort Shabanpour, Javad
collection PubMed
description Ultrawide-angle electromagnetic wave absorbers with excellent mechanical properties are required in many diverse applications such as sensing, and stealth technologies. Here, a novel 3D reconfigurable metamaterial absorber (MMA) consisting of honeycomb and VO2 films is proposed. The proposed MMA exhibits a strong absorptivity above 90% in the widest incident angle up to [Formula: see text] for TM- and TE polarized oblique incidences for THz wave propagating in yoz-plane. Under normal incidence, when VO2 films are in the insulating state, the proposed absorber exhibits high absorptivity in the frequency band of 1–4 THz. By increasing the temperature of the whole structure, the structural transformation of VO2 occurs and turns into the metallic phase. We have shown that under oblique incidence, the ohmic losses of VO2 films especially those parallel to the direction of the incident electric field are the most important absorption principles of the proposed MMA. Due to the ultra wide-angle absorption (angular stability) and mechanical performance, it is expected that the presented MMA may find potential applications, such as camouflage technologies, electromagnetic interference, imaging, and sensing. To the best knowledge of authors, the proposed MMA configuration exhibits the absorptivity in the widest incident angle ever reported.
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spelling pubmed-74834202020-09-11 Reconfigurable honeycomb metamaterial absorber having incident angular stability Shabanpour, Javad Beyraghi, Sina Oraizi, Homayoon Sci Rep Article Ultrawide-angle electromagnetic wave absorbers with excellent mechanical properties are required in many diverse applications such as sensing, and stealth technologies. Here, a novel 3D reconfigurable metamaterial absorber (MMA) consisting of honeycomb and VO2 films is proposed. The proposed MMA exhibits a strong absorptivity above 90% in the widest incident angle up to [Formula: see text] for TM- and TE polarized oblique incidences for THz wave propagating in yoz-plane. Under normal incidence, when VO2 films are in the insulating state, the proposed absorber exhibits high absorptivity in the frequency band of 1–4 THz. By increasing the temperature of the whole structure, the structural transformation of VO2 occurs and turns into the metallic phase. We have shown that under oblique incidence, the ohmic losses of VO2 films especially those parallel to the direction of the incident electric field are the most important absorption principles of the proposed MMA. Due to the ultra wide-angle absorption (angular stability) and mechanical performance, it is expected that the presented MMA may find potential applications, such as camouflage technologies, electromagnetic interference, imaging, and sensing. To the best knowledge of authors, the proposed MMA configuration exhibits the absorptivity in the widest incident angle ever reported. Nature Publishing Group UK 2020-09-10 /pmc/articles/PMC7483420/ /pubmed/32913238 http://dx.doi.org/10.1038/s41598-020-72105-4 Text en © The Author(s) 2020 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
Shabanpour, Javad
Beyraghi, Sina
Oraizi, Homayoon
Reconfigurable honeycomb metamaterial absorber having incident angular stability
title Reconfigurable honeycomb metamaterial absorber having incident angular stability
title_full Reconfigurable honeycomb metamaterial absorber having incident angular stability
title_fullStr Reconfigurable honeycomb metamaterial absorber having incident angular stability
title_full_unstemmed Reconfigurable honeycomb metamaterial absorber having incident angular stability
title_short Reconfigurable honeycomb metamaterial absorber having incident angular stability
title_sort reconfigurable honeycomb metamaterial absorber having incident angular stability
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7483420/
https://www.ncbi.nlm.nih.gov/pubmed/32913238
http://dx.doi.org/10.1038/s41598-020-72105-4
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