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Independent control of differently-polarized waves using anisotropic gradient-index metamaterials

We propose a kind of anisotropic gradient-index (GRIN) metamaterials, which can be used to control differently-polarized waves independently. We show that two three- dimensional (3D) planar lenses made of such anisotropic GRIN metamaterials are able to make arbitrary beam deflections for the vertica...

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Detalles Bibliográficos
Autores principales: Ma, Hui Feng, Wang, Gui Zhen, Jiang, Wei Xiang, Cui, Tie Jun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4166714/
https://www.ncbi.nlm.nih.gov/pubmed/25231412
http://dx.doi.org/10.1038/srep06337
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author Ma, Hui Feng
Wang, Gui Zhen
Jiang, Wei Xiang
Cui, Tie Jun
author_facet Ma, Hui Feng
Wang, Gui Zhen
Jiang, Wei Xiang
Cui, Tie Jun
author_sort Ma, Hui Feng
collection PubMed
description We propose a kind of anisotropic gradient-index (GRIN) metamaterials, which can be used to control differently-polarized waves independently. We show that two three- dimensional (3D) planar lenses made of such anisotropic GRIN metamaterials are able to make arbitrary beam deflections for the vertical (or horizontal) polarization but have no response to the horizontal (or vertical) polarization. Then the vertically- and horizontally-polarized waves are separated and controlled independently to deflect to arbitrarily different directions by designing the anisotropic GRIN planar lenses. We make experimental verifications of the lenses using such a special metamaterial, which has both electric and magnetic responses simultaneously to reach approximately equal permittivity and permeability. Hence excellent impedance matching is obtained between the GRIN planar lenses and the air. The measurement results demonstrate good performance on the independent controls of differently-polarized waves, as observed in the numerical simulations.
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spelling pubmed-41667142014-09-24 Independent control of differently-polarized waves using anisotropic gradient-index metamaterials Ma, Hui Feng Wang, Gui Zhen Jiang, Wei Xiang Cui, Tie Jun Sci Rep Article We propose a kind of anisotropic gradient-index (GRIN) metamaterials, which can be used to control differently-polarized waves independently. We show that two three- dimensional (3D) planar lenses made of such anisotropic GRIN metamaterials are able to make arbitrary beam deflections for the vertical (or horizontal) polarization but have no response to the horizontal (or vertical) polarization. Then the vertically- and horizontally-polarized waves are separated and controlled independently to deflect to arbitrarily different directions by designing the anisotropic GRIN planar lenses. We make experimental verifications of the lenses using such a special metamaterial, which has both electric and magnetic responses simultaneously to reach approximately equal permittivity and permeability. Hence excellent impedance matching is obtained between the GRIN planar lenses and the air. The measurement results demonstrate good performance on the independent controls of differently-polarized waves, as observed in the numerical simulations. Nature Publishing Group 2014-09-18 /pmc/articles/PMC4166714/ /pubmed/25231412 http://dx.doi.org/10.1038/srep06337 Text en Copyright © 2014, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by-nc-nd/4.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder in order to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/4.0/
spellingShingle Article
Ma, Hui Feng
Wang, Gui Zhen
Jiang, Wei Xiang
Cui, Tie Jun
Independent control of differently-polarized waves using anisotropic gradient-index metamaterials
title Independent control of differently-polarized waves using anisotropic gradient-index metamaterials
title_full Independent control of differently-polarized waves using anisotropic gradient-index metamaterials
title_fullStr Independent control of differently-polarized waves using anisotropic gradient-index metamaterials
title_full_unstemmed Independent control of differently-polarized waves using anisotropic gradient-index metamaterials
title_short Independent control of differently-polarized waves using anisotropic gradient-index metamaterials
title_sort independent control of differently-polarized waves using anisotropic gradient-index metamaterials
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4166714/
https://www.ncbi.nlm.nih.gov/pubmed/25231412
http://dx.doi.org/10.1038/srep06337
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