Orbital angular momentum transformation of optical vortex with aluminum metasurfaces

Abstract The orbital angular momentum (OAM) transformation of optical vortex is realized upon using aluminum metasurfaces with phase distributions derived from the caustic theory. The generated OAM transformation beam has the well-defined Bessel-like patterns with multiple designed topological charg...

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Autores principales:	Yuchao Zhang, Xiaodong Yang, Jie Gao
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2019
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/ddf106776ca442bfa9a55fb5f24d233f
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spelling	oai:doaj.org-article:ddf106776ca442bfa9a55fb5f24d233f2021-12-02T15:09:29ZOrbital angular momentum transformation of optical vortex with aluminum metasurfaces10.1038/s41598-019-45727-62045-2322https://doaj.org/article/ddf106776ca442bfa9a55fb5f24d233f2019-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-019-45727-6https://doaj.org/toc/2045-2322Abstract The orbital angular momentum (OAM) transformation of optical vortex is realized upon using aluminum metasurfaces with phase distributions derived from the caustic theory. The generated OAM transformation beam has the well-defined Bessel-like patterns with multiple designed topological charges from −1 to +2.5 including both the integer-order and fractional-order optical vortices along the propagation. The detailed OAM transformation process is observed in terms of the variations of both beam intensity and phase profiles. The dynamic distributions of OAM mode density in the transformation are further analyzed to illustrate the conservation of the total OAM. The demonstration of transforming OAM states arbitrarily for optical vortex beams will lead to many new applications in optical manipulation, quantum optics, and optical communication.Yuchao ZhangXiaodong YangJie GaoNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 9, Iss 1, Pp 1-9 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Yuchao Zhang Xiaodong Yang Jie Gao Orbital angular momentum transformation of optical vortex with aluminum metasurfaces
description	Abstract The orbital angular momentum (OAM) transformation of optical vortex is realized upon using aluminum metasurfaces with phase distributions derived from the caustic theory. The generated OAM transformation beam has the well-defined Bessel-like patterns with multiple designed topological charges from −1 to +2.5 including both the integer-order and fractional-order optical vortices along the propagation. The detailed OAM transformation process is observed in terms of the variations of both beam intensity and phase profiles. The dynamic distributions of OAM mode density in the transformation are further analyzed to illustrate the conservation of the total OAM. The demonstration of transforming OAM states arbitrarily for optical vortex beams will lead to many new applications in optical manipulation, quantum optics, and optical communication.
format	article
author	Yuchao Zhang Xiaodong Yang Jie Gao
author_facet	Yuchao Zhang Xiaodong Yang Jie Gao
author_sort	Yuchao Zhang
title	Orbital angular momentum transformation of optical vortex with aluminum metasurfaces
title_short	Orbital angular momentum transformation of optical vortex with aluminum metasurfaces
title_full	Orbital angular momentum transformation of optical vortex with aluminum metasurfaces
title_fullStr	Orbital angular momentum transformation of optical vortex with aluminum metasurfaces
title_full_unstemmed	Orbital angular momentum transformation of optical vortex with aluminum metasurfaces
title_sort	orbital angular momentum transformation of optical vortex with aluminum metasurfaces
publisher	Nature Portfolio
publishDate	2019
url	https://doaj.org/article/ddf106776ca442bfa9a55fb5f24d233f
work_keys_str_mv	AT yuchaozhang orbitalangularmomentumtransformationofopticalvortexwithaluminummetasurfaces AT xiaodongyang orbitalangularmomentumtransformationofopticalvortexwithaluminummetasurfaces AT jiegao orbitalangularmomentumtransformationofopticalvortexwithaluminummetasurfaces
_version_	1718387845926748160

Orbital angular momentum transformation of optical vortex with aluminum metasurfaces

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