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Bilayer synergetic coupling double negative acoustic metasurface and cloak

In this paper, we propose a bilayer plate-type lightweight double negative metasurface based on a new synergetic coupling design concept, by which the perfect absorption, double negative bands, free manipulation of phase shifts with a 2π span and acoustic cloak can be successively realized. Firstly,...

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Autores principales: Ma, Fuyin, Huang, Meng, Xu, Yicai, Wu, Jiu Hui
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5897382/
https://www.ncbi.nlm.nih.gov/pubmed/29651157
http://dx.doi.org/10.1038/s41598-018-24231-3
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author Ma, Fuyin
Huang, Meng
Xu, Yicai
Wu, Jiu Hui
author_facet Ma, Fuyin
Huang, Meng
Xu, Yicai
Wu, Jiu Hui
author_sort Ma, Fuyin
collection PubMed
description In this paper, we propose a bilayer plate-type lightweight double negative metasurface based on a new synergetic coupling design concept, by which the perfect absorption, double negative bands, free manipulation of phase shifts with a 2π span and acoustic cloak can be successively realized. Firstly, the synergetic behavior between resonant and anti-resonant plates is presented to construct a bilayer unit in which each component respectively provides a pre-defined function in realizing the perfect absorption. Based on this bilayer structure, a double negative band with simultaneously negative effective mass density and bulk modulus is obtained, which, as a metasurface, can obtain continuous phase shifts almost completely covering a 2π range, thus facilitating the design of a three-dimensional (3D) acoustic cloak. In addition, based on this strong sound absorption concept, a two-dimensional (2D) omnidirectional broadband acoustical dark skin, covering between 800 to 6000 Hz, is also demonstrated through the proposed bilayer plate-type structure form. The proposed design concepts and metasurfaces have widespread potential application values in strong sound attenuation, filtering, superlens, imaging, cloak, and extraordinary wave steering, in which the attributes of strong absorption, double negative parameters or continuous phase shifts with full 2π span are required to realize the expected extraordinary physical features.
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spelling pubmed-58973822018-04-20 Bilayer synergetic coupling double negative acoustic metasurface and cloak Ma, Fuyin Huang, Meng Xu, Yicai Wu, Jiu Hui Sci Rep Article In this paper, we propose a bilayer plate-type lightweight double negative metasurface based on a new synergetic coupling design concept, by which the perfect absorption, double negative bands, free manipulation of phase shifts with a 2π span and acoustic cloak can be successively realized. Firstly, the synergetic behavior between resonant and anti-resonant plates is presented to construct a bilayer unit in which each component respectively provides a pre-defined function in realizing the perfect absorption. Based on this bilayer structure, a double negative band with simultaneously negative effective mass density and bulk modulus is obtained, which, as a metasurface, can obtain continuous phase shifts almost completely covering a 2π range, thus facilitating the design of a three-dimensional (3D) acoustic cloak. In addition, based on this strong sound absorption concept, a two-dimensional (2D) omnidirectional broadband acoustical dark skin, covering between 800 to 6000 Hz, is also demonstrated through the proposed bilayer plate-type structure form. The proposed design concepts and metasurfaces have widespread potential application values in strong sound attenuation, filtering, superlens, imaging, cloak, and extraordinary wave steering, in which the attributes of strong absorption, double negative parameters or continuous phase shifts with full 2π span are required to realize the expected extraordinary physical features. Nature Publishing Group UK 2018-04-12 /pmc/articles/PMC5897382/ /pubmed/29651157 http://dx.doi.org/10.1038/s41598-018-24231-3 Text en © The Author(s) 2018 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
Ma, Fuyin
Huang, Meng
Xu, Yicai
Wu, Jiu Hui
Bilayer synergetic coupling double negative acoustic metasurface and cloak
title Bilayer synergetic coupling double negative acoustic metasurface and cloak
title_full Bilayer synergetic coupling double negative acoustic metasurface and cloak
title_fullStr Bilayer synergetic coupling double negative acoustic metasurface and cloak
title_full_unstemmed Bilayer synergetic coupling double negative acoustic metasurface and cloak
title_short Bilayer synergetic coupling double negative acoustic metasurface and cloak
title_sort bilayer synergetic coupling double negative acoustic metasurface and cloak
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5897382/
https://www.ncbi.nlm.nih.gov/pubmed/29651157
http://dx.doi.org/10.1038/s41598-018-24231-3
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AT wujiuhui bilayersynergeticcouplingdoublenegativeacousticmetasurfaceandcloak