Multispectral optical metasurfaces enabled by achromatic phase transition

The independent control of electromagnetic waves with different oscillating frequencies is critical in the modern electromagnetic techniques, such as wireless communications and multispectral imaging. To obtain complete control of different light waves with optical materials, the chromatic dispersio...

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Main Authors:	Zhao, Zeyu, Pu, Mingbo, Gao, Hui, Jin, Jinjin, Li, Xiong, Ma, Xiaoliang, Wang, Yanqin, Gao, Ping, Luo, Xiangang
Format:	Online
Language:	English
Published:	Nature Publishing Group 2015
Online Access:	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4621515/

id	pubmed-4621515
recordtype	oai_dc
spelling	pubmed-46215152015-10-29 Multispectral optical metasurfaces enabled by achromatic phase transition Zhao, Zeyu Pu, Mingbo Gao, Hui Jin, Jinjin Li, Xiong Ma, Xiaoliang Wang, Yanqin Gao, Ping Luo, Xiangang Article The independent control of electromagnetic waves with different oscillating frequencies is critical in the modern electromagnetic techniques, such as wireless communications and multispectral imaging. To obtain complete control of different light waves with optical materials, the chromatic dispersion should be carefully controlled, which is however extremely difficult. In this paper, we propose a method to control the behaviors of different light waves through a metasurface which is able to generate achromatic geometric phase. Using this approach, a doughnut-shaped and a solid light spot were achieved at the same focal plane using two light sources with different wavelengths as used in the stimulation emission depletion (STED) microscope system. In order to reveal the full capacity of such method, tight focusing at multiple wavelengths is also represented, where the focal spots of different wavelengths are located at the same position. The results provided here may open a new door to the design of subminiature optical components and integrated optical system operating at multiple wavelengths. Nature Publishing Group 2015-10-27 /pmc/articles/PMC4621515/ /pubmed/26503607 http://dx.doi.org/10.1038/srep15781 Text en Copyright © 2015, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 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 to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
repository_type	Open Access Journal
institution_category	Foreign Institution
institution	US National Center for Biotechnology Information
building	NCBI PubMed
collection	Online Access
language	English
format	Online
author	Zhao, Zeyu Pu, Mingbo Gao, Hui Jin, Jinjin Li, Xiong Ma, Xiaoliang Wang, Yanqin Gao, Ping Luo, Xiangang
spellingShingle	Zhao, Zeyu Pu, Mingbo Gao, Hui Jin, Jinjin Li, Xiong Ma, Xiaoliang Wang, Yanqin Gao, Ping Luo, Xiangang Multispectral optical metasurfaces enabled by achromatic phase transition
author_facet	Zhao, Zeyu Pu, Mingbo Gao, Hui Jin, Jinjin Li, Xiong Ma, Xiaoliang Wang, Yanqin Gao, Ping Luo, Xiangang
author_sort	Zhao, Zeyu
title	Multispectral optical metasurfaces enabled by achromatic phase transition
title_short	Multispectral optical metasurfaces enabled by achromatic phase transition
title_full	Multispectral optical metasurfaces enabled by achromatic phase transition
title_fullStr	Multispectral optical metasurfaces enabled by achromatic phase transition
title_full_unstemmed	Multispectral optical metasurfaces enabled by achromatic phase transition
title_sort	multispectral optical metasurfaces enabled by achromatic phase transition
description	The independent control of electromagnetic waves with different oscillating frequencies is critical in the modern electromagnetic techniques, such as wireless communications and multispectral imaging. To obtain complete control of different light waves with optical materials, the chromatic dispersion should be carefully controlled, which is however extremely difficult. In this paper, we propose a method to control the behaviors of different light waves through a metasurface which is able to generate achromatic geometric phase. Using this approach, a doughnut-shaped and a solid light spot were achieved at the same focal plane using two light sources with different wavelengths as used in the stimulation emission depletion (STED) microscope system. In order to reveal the full capacity of such method, tight focusing at multiple wavelengths is also represented, where the focal spots of different wavelengths are located at the same position. The results provided here may open a new door to the design of subminiature optical components and integrated optical system operating at multiple wavelengths.
publisher	Nature Publishing Group
publishDate	2015
url	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4621515/
_version_	1613493420015222784

Multispectral optical metasurfaces enabled by achromatic phase transition

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