Fast switching cholesteric liquid crystal optical beam deflector with polarization independence

Optical beam deflectors based on the combination of cholesteric liquid crystals and polymer micro gratings are reported. Dual frequency cholesteric liquid crystal (DFCh-LC) is adopted to accelerate the switching from the homeotropic state back to the planar state. Polarization independent beam steer...

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Autores principales: Shang, Xiaobing, Meeus, Laurens, Cuypers, Dieter, De Smet, Herbert
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5529461/
https://www.ncbi.nlm.nih.gov/pubmed/28747672
http://dx.doi.org/10.1038/s41598-017-06944-z
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author Shang, Xiaobing
Meeus, Laurens
Cuypers, Dieter
De Smet, Herbert
author_facet Shang, Xiaobing
Meeus, Laurens
Cuypers, Dieter
De Smet, Herbert
author_sort Shang, Xiaobing
collection PubMed
description Optical beam deflectors based on the combination of cholesteric liquid crystals and polymer micro gratings are reported. Dual frequency cholesteric liquid crystal (DFCh-LC) is adopted to accelerate the switching from the homeotropic state back to the planar state. Polarization independent beam steering components are realized whose transmission versus the polarizing angle only varies 4.4% and 2.6% for the planar state and the homeotropic state, respectively. A response time of 451 ms is achieved for DFCh-LC-grating beam deflectors, which is fast compared to other nematic LC beam steerers with similar LC thickness.
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spelling pubmed-55294612017-08-02 Fast switching cholesteric liquid crystal optical beam deflector with polarization independence Shang, Xiaobing Meeus, Laurens Cuypers, Dieter De Smet, Herbert Sci Rep Article Optical beam deflectors based on the combination of cholesteric liquid crystals and polymer micro gratings are reported. Dual frequency cholesteric liquid crystal (DFCh-LC) is adopted to accelerate the switching from the homeotropic state back to the planar state. Polarization independent beam steering components are realized whose transmission versus the polarizing angle only varies 4.4% and 2.6% for the planar state and the homeotropic state, respectively. A response time of 451 ms is achieved for DFCh-LC-grating beam deflectors, which is fast compared to other nematic LC beam steerers with similar LC thickness. Nature Publishing Group UK 2017-07-26 /pmc/articles/PMC5529461/ /pubmed/28747672 http://dx.doi.org/10.1038/s41598-017-06944-z Text en © The Author(s) 2017 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Shang, Xiaobing
Meeus, Laurens
Cuypers, Dieter
De Smet, Herbert
Fast switching cholesteric liquid crystal optical beam deflector with polarization independence
title Fast switching cholesteric liquid crystal optical beam deflector with polarization independence
title_full Fast switching cholesteric liquid crystal optical beam deflector with polarization independence
title_fullStr Fast switching cholesteric liquid crystal optical beam deflector with polarization independence
title_full_unstemmed Fast switching cholesteric liquid crystal optical beam deflector with polarization independence
title_short Fast switching cholesteric liquid crystal optical beam deflector with polarization independence
title_sort fast switching cholesteric liquid crystal optical beam deflector with polarization independence
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5529461/
https://www.ncbi.nlm.nih.gov/pubmed/28747672
http://dx.doi.org/10.1038/s41598-017-06944-z
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