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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...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2014
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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. |
format | Online Article Text |
id | pubmed-4166714 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2014 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
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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