Cargando…

Experimental Realization of an Extreme-Parameter Omnidirectional Cloak

An ideal transformation-based omnidirectional cloak always relies on metamaterials with extreme parameters, which were previously thought to be too difficult to realize. For such a reason, in previous experimental proposals of invisibility cloaks, the extreme parameters requirements are usually aban...

Descripción completa

Detalles Bibliográficos
Autores principales: Zheng, Bin, Yang, Yihao, Shao, Zheping, Yan, Qinghui, Shen, Nian-Hai, Shen, Lian, Wang, Huaping, Li, Erping, Soukoulis, Costas M., Chen, Hongsheng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: AAAS 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6750086/
https://www.ncbi.nlm.nih.gov/pubmed/31549087
http://dx.doi.org/10.34133/2019/8282641
_version_ 1783452399781806080
author Zheng, Bin
Yang, Yihao
Shao, Zheping
Yan, Qinghui
Shen, Nian-Hai
Shen, Lian
Wang, Huaping
Li, Erping
Soukoulis, Costas M.
Chen, Hongsheng
author_facet Zheng, Bin
Yang, Yihao
Shao, Zheping
Yan, Qinghui
Shen, Nian-Hai
Shen, Lian
Wang, Huaping
Li, Erping
Soukoulis, Costas M.
Chen, Hongsheng
author_sort Zheng, Bin
collection PubMed
description An ideal transformation-based omnidirectional cloak always relies on metamaterials with extreme parameters, which were previously thought to be too difficult to realize. For such a reason, in previous experimental proposals of invisibility cloaks, the extreme parameters requirements are usually abandoned, leading to inherent scattering. Here, we report on the first experimental demonstration of an omnidirectional cloak that satisfies the extreme parameters requirement, which can hide objects in a homogenous background. Instead of using resonant metamaterials that usually involve unavoidable absorptive loss, the extreme parameters are achieved using a nonresonant metamaterial comprising arrays of subwavelength metallic channels manufactured with 3D metal printing technology. A high level transmission of electromagnetic wave propagating through the present omnidirectional cloak, as well as significant reduction of scattering field, is demonstrated both numerically and experimentally. Our work may also inspire experimental realizations of the other full-parameter omnidirectional optical devices such as concentrator, rotators, and optical illusion apparatuses.
format Online
Article
Text
id pubmed-6750086
institution National Center for Biotechnology Information
language English
publishDate 2019
publisher AAAS
record_format MEDLINE/PubMed
spelling pubmed-67500862019-09-23 Experimental Realization of an Extreme-Parameter Omnidirectional Cloak Zheng, Bin Yang, Yihao Shao, Zheping Yan, Qinghui Shen, Nian-Hai Shen, Lian Wang, Huaping Li, Erping Soukoulis, Costas M. Chen, Hongsheng Research (Wash D C) Research Article An ideal transformation-based omnidirectional cloak always relies on metamaterials with extreme parameters, which were previously thought to be too difficult to realize. For such a reason, in previous experimental proposals of invisibility cloaks, the extreme parameters requirements are usually abandoned, leading to inherent scattering. Here, we report on the first experimental demonstration of an omnidirectional cloak that satisfies the extreme parameters requirement, which can hide objects in a homogenous background. Instead of using resonant metamaterials that usually involve unavoidable absorptive loss, the extreme parameters are achieved using a nonresonant metamaterial comprising arrays of subwavelength metallic channels manufactured with 3D metal printing technology. A high level transmission of electromagnetic wave propagating through the present omnidirectional cloak, as well as significant reduction of scattering field, is demonstrated both numerically and experimentally. Our work may also inspire experimental realizations of the other full-parameter omnidirectional optical devices such as concentrator, rotators, and optical illusion apparatuses. AAAS 2019-08-18 /pmc/articles/PMC6750086/ /pubmed/31549087 http://dx.doi.org/10.34133/2019/8282641 Text en Copyright © 2019 Bin Zheng et al. https://creativecommons.org/licenses/by/4.0/ Exclusive licensee Science and Technology Review Publishing House. Distributed under a Creative Commons Attribution License (CC BY 4.0).
spellingShingle Research Article
Zheng, Bin
Yang, Yihao
Shao, Zheping
Yan, Qinghui
Shen, Nian-Hai
Shen, Lian
Wang, Huaping
Li, Erping
Soukoulis, Costas M.
Chen, Hongsheng
Experimental Realization of an Extreme-Parameter Omnidirectional Cloak
title Experimental Realization of an Extreme-Parameter Omnidirectional Cloak
title_full Experimental Realization of an Extreme-Parameter Omnidirectional Cloak
title_fullStr Experimental Realization of an Extreme-Parameter Omnidirectional Cloak
title_full_unstemmed Experimental Realization of an Extreme-Parameter Omnidirectional Cloak
title_short Experimental Realization of an Extreme-Parameter Omnidirectional Cloak
title_sort experimental realization of an extreme-parameter omnidirectional cloak
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6750086/
https://www.ncbi.nlm.nih.gov/pubmed/31549087
http://dx.doi.org/10.34133/2019/8282641
work_keys_str_mv AT zhengbin experimentalrealizationofanextremeparameteromnidirectionalcloak
AT yangyihao experimentalrealizationofanextremeparameteromnidirectionalcloak
AT shaozheping experimentalrealizationofanextremeparameteromnidirectionalcloak
AT yanqinghui experimentalrealizationofanextremeparameteromnidirectionalcloak
AT shennianhai experimentalrealizationofanextremeparameteromnidirectionalcloak
AT shenlian experimentalrealizationofanextremeparameteromnidirectionalcloak
AT wanghuaping experimentalrealizationofanextremeparameteromnidirectionalcloak
AT lierping experimentalrealizationofanextremeparameteromnidirectionalcloak
AT soukouliscostasm experimentalrealizationofanextremeparameteromnidirectionalcloak
AT chenhongsheng experimentalrealizationofanextremeparameteromnidirectionalcloak