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All-dielectric metasurface circular dichroism waveplate

We propose and experimentally demonstrate a high efficient circularly polarizing dichroism waveplate (CPDW) using a Si-based all-dielectric 2Dchiral metasurface. We demonstrate that the CPDW exhibits a unique dichroism in that it functions as a transmissive quarter waveplate for one of either left-o...

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Autores principales: Hu, Jingpei, Zhao, Xiaonan, Lin, Yu, Zhu, Aijiao, Zhu, Xiaojun, Guo, Peiji, Cao, Bing, Wang, Chinhua
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5282559/
https://www.ncbi.nlm.nih.gov/pubmed/28139753
http://dx.doi.org/10.1038/srep41893
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author Hu, Jingpei
Zhao, Xiaonan
Lin, Yu
Zhu, Aijiao
Zhu, Xiaojun
Guo, Peiji
Cao, Bing
Wang, Chinhua
author_facet Hu, Jingpei
Zhao, Xiaonan
Lin, Yu
Zhu, Aijiao
Zhu, Xiaojun
Guo, Peiji
Cao, Bing
Wang, Chinhua
author_sort Hu, Jingpei
collection PubMed
description We propose and experimentally demonstrate a high efficient circularly polarizing dichroism waveplate (CPDW) using a Si-based all-dielectric 2Dchiral metasurface. We demonstrate that the CPDW exhibits a unique dichroism in that it functions as a transmissive quarter waveplate for one of either left-or right-handed circularly polarized incident lightand a reflective mirror for the opposite polarization. The circular polarization dichroism (CPD = I(RCP) − I(LCP)) in transmission at wavelength ~1.5 μm reaches 97% and the extinction ratio (ER = I(RCP)/I(LCP)) is as high as 345:1. Experimental fabrications and measurements of the proposed all-dielectric metasurface are implemented and found to be in excellent agreement with the simulations. The proposed all-dielectric chiral metasurface is of advantages of high-dichroism, easy-fabrication and standard semiconductor fabrication techniques compatible, which could lead to enhanced security in fiber and free-space communications, as well as imaging and sensing applications for circularly polarized light with a highly integrated photonic platform.
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spelling pubmed-52825592017-02-03 All-dielectric metasurface circular dichroism waveplate Hu, Jingpei Zhao, Xiaonan Lin, Yu Zhu, Aijiao Zhu, Xiaojun Guo, Peiji Cao, Bing Wang, Chinhua Sci Rep Article We propose and experimentally demonstrate a high efficient circularly polarizing dichroism waveplate (CPDW) using a Si-based all-dielectric 2Dchiral metasurface. We demonstrate that the CPDW exhibits a unique dichroism in that it functions as a transmissive quarter waveplate for one of either left-or right-handed circularly polarized incident lightand a reflective mirror for the opposite polarization. The circular polarization dichroism (CPD = I(RCP) − I(LCP)) in transmission at wavelength ~1.5 μm reaches 97% and the extinction ratio (ER = I(RCP)/I(LCP)) is as high as 345:1. Experimental fabrications and measurements of the proposed all-dielectric metasurface are implemented and found to be in excellent agreement with the simulations. The proposed all-dielectric chiral metasurface is of advantages of high-dichroism, easy-fabrication and standard semiconductor fabrication techniques compatible, which could lead to enhanced security in fiber and free-space communications, as well as imaging and sensing applications for circularly polarized light with a highly integrated photonic platform. Nature Publishing Group 2017-01-31 /pmc/articles/PMC5282559/ /pubmed/28139753 http://dx.doi.org/10.1038/srep41893 Text en Copyright © 2017, The Author(s) 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/
spellingShingle Article
Hu, Jingpei
Zhao, Xiaonan
Lin, Yu
Zhu, Aijiao
Zhu, Xiaojun
Guo, Peiji
Cao, Bing
Wang, Chinhua
All-dielectric metasurface circular dichroism waveplate
title All-dielectric metasurface circular dichroism waveplate
title_full All-dielectric metasurface circular dichroism waveplate
title_fullStr All-dielectric metasurface circular dichroism waveplate
title_full_unstemmed All-dielectric metasurface circular dichroism waveplate
title_short All-dielectric metasurface circular dichroism waveplate
title_sort all-dielectric metasurface circular dichroism waveplate
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5282559/
https://www.ncbi.nlm.nih.gov/pubmed/28139753
http://dx.doi.org/10.1038/srep41893
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