Broadband polarization conversion with anisotropic plasmonic metasurfaces

Abstract Metasurfaces offer exciting opportunities that enable precise control of light propagation, optical intensity, phase and polarization. Plasmonic metasurface based quarter-wave plates have been recently studied to realize the conversion between linear polarization and circular polarization....

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Autores principales:	Wei Cao, Xiaodong Yang, Jie Gao
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/a1a1b20d421d45c985e9c64b2fd634ff
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spelling	oai:doaj.org-article:a1a1b20d421d45c985e9c64b2fd634ff2021-12-02T15:05:16ZBroadband polarization conversion with anisotropic plasmonic metasurfaces10.1038/s41598-017-09476-82045-2322https://doaj.org/article/a1a1b20d421d45c985e9c64b2fd634ff2017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-09476-8https://doaj.org/toc/2045-2322Abstract Metasurfaces offer exciting opportunities that enable precise control of light propagation, optical intensity, phase and polarization. Plasmonic metasurface based quarter-wave plates have been recently studied to realize the conversion between linear polarization and circular polarization. However, it is still quite challenging to directly measure the birefringent phase retardation introduced by metasurface wave plates with a reliable technique. Here, we report a high-performance broadband metasurface quarter-wave plate made of anisotropic T-shaped plasmonic antennas in near-infrared wavelength range, where the achromatic nearly 90° transmitted phase retardation through the metasurface is precisely characterized with an optical vortex based interferometric approach. Based on the measured transmission amplitude and phase of two orthogonal linear polarization components, nearly unit degree of linear polarization is extracted from the Stokes parameters, indicating excellent broadband polarization conversion between linearly and circularly polarized light through the metasurface. Our results will be an important step forward in the advancement of integrated metasurface devices for polarization conversion and beam manipulation, structured light control, as well as new spectroscopic and interferometric techniques for metasurface characterization.Wei CaoXiaodong YangJie GaoNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Wei Cao Xiaodong Yang Jie Gao Broadband polarization conversion with anisotropic plasmonic metasurfaces
description	Abstract Metasurfaces offer exciting opportunities that enable precise control of light propagation, optical intensity, phase and polarization. Plasmonic metasurface based quarter-wave plates have been recently studied to realize the conversion between linear polarization and circular polarization. However, it is still quite challenging to directly measure the birefringent phase retardation introduced by metasurface wave plates with a reliable technique. Here, we report a high-performance broadband metasurface quarter-wave plate made of anisotropic T-shaped plasmonic antennas in near-infrared wavelength range, where the achromatic nearly 90° transmitted phase retardation through the metasurface is precisely characterized with an optical vortex based interferometric approach. Based on the measured transmission amplitude and phase of two orthogonal linear polarization components, nearly unit degree of linear polarization is extracted from the Stokes parameters, indicating excellent broadband polarization conversion between linearly and circularly polarized light through the metasurface. Our results will be an important step forward in the advancement of integrated metasurface devices for polarization conversion and beam manipulation, structured light control, as well as new spectroscopic and interferometric techniques for metasurface characterization.
format	article
author	Wei Cao Xiaodong Yang Jie Gao
author_facet	Wei Cao Xiaodong Yang Jie Gao
author_sort	Wei Cao
title	Broadband polarization conversion with anisotropic plasmonic metasurfaces
title_short	Broadband polarization conversion with anisotropic plasmonic metasurfaces
title_full	Broadband polarization conversion with anisotropic plasmonic metasurfaces
title_fullStr	Broadband polarization conversion with anisotropic plasmonic metasurfaces
title_full_unstemmed	Broadband polarization conversion with anisotropic plasmonic metasurfaces
title_sort	broadband polarization conversion with anisotropic plasmonic metasurfaces
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/a1a1b20d421d45c985e9c64b2fd634ff
work_keys_str_mv	AT weicao broadbandpolarizationconversionwithanisotropicplasmonicmetasurfaces AT xiaodongyang broadbandpolarizationconversionwithanisotropicplasmonicmetasurfaces AT jiegao broadbandpolarizationconversionwithanisotropicplasmonicmetasurfaces
_version_	1718388910455783424

Broadband polarization conversion with anisotropic plasmonic metasurfaces

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