Enhanced Nonlinear Optical Effect in Hybrid Liquid Crystal Cells Based on Photonic Crystal

Nonlinear-optical response of photorefractive hybrid liquid crystal (LC) cells has been studied by means of dynamic holographic technique in two-wave mixing arrangement. The LC cells include nonuniform silicon substrates comprising a micrometer-range photonic crystal. A thin LC layer is set between...

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Detalles Bibliográficos
Autores principales: Bugaychuk, Svitlana, Iljin, Andrey, Lytvynenko, Oleg, Tarakhan, Ludmila, Karachevtseva, Lulmila
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2017
Materias:
Nano Express
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5500608/
https://www.ncbi.nlm.nih.gov/pubmed/28687041
http://dx.doi.org/10.1186/s11671-017-2217-3
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author Bugaychuk, Svitlana
Iljin, Andrey
Lytvynenko, Oleg
Tarakhan, Ludmila
Karachevtseva, Lulmila
author_facet Bugaychuk, Svitlana
Iljin, Andrey
Lytvynenko, Oleg
Tarakhan, Ludmila
Karachevtseva, Lulmila
author_sort Bugaychuk, Svitlana
collection PubMed
description Nonlinear-optical response of photorefractive hybrid liquid crystal (LC) cells has been studied by means of dynamic holographic technique in two-wave mixing arrangement. The LC cells include nonuniform silicon substrates comprising a micrometer-range photonic crystal. A thin LC layer is set between silicon substrate and a flat glass substrate covered by a transparent (ITO) electrode. A dynamic diffraction grating was induced in the LC volume by the two-wave mixing of laser beams with simultaneous application of DC electric field to the cell. Theoretical model of Raman-Nath self-diffraction was developed. This model allows for calculation of nonlinear optical characteristics in thin samples on the base of two-wave mixing experimental data, and with taking into account light losses on absorption and/or scattering. The hybrid LC cells demonstrate strong nonlinear optical effect, prospective for many applications in electro-optical microsystems, such as SLMs, as well as in multi-channel systems.
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spelling pubmed-55006082017-07-25 Enhanced Nonlinear Optical Effect in Hybrid Liquid Crystal Cells Based on Photonic Crystal Bugaychuk, Svitlana Iljin, Andrey Lytvynenko, Oleg Tarakhan, Ludmila Karachevtseva, Lulmila Nanoscale Res Lett Nano Express Nonlinear-optical response of photorefractive hybrid liquid crystal (LC) cells has been studied by means of dynamic holographic technique in two-wave mixing arrangement. The LC cells include nonuniform silicon substrates comprising a micrometer-range photonic crystal. A thin LC layer is set between silicon substrate and a flat glass substrate covered by a transparent (ITO) electrode. A dynamic diffraction grating was induced in the LC volume by the two-wave mixing of laser beams with simultaneous application of DC electric field to the cell. Theoretical model of Raman-Nath self-diffraction was developed. This model allows for calculation of nonlinear optical characteristics in thin samples on the base of two-wave mixing experimental data, and with taking into account light losses on absorption and/or scattering. The hybrid LC cells demonstrate strong nonlinear optical effect, prospective for many applications in electro-optical microsystems, such as SLMs, as well as in multi-channel systems. Springer US 2017-07-06 /pmc/articles/PMC5500608/ /pubmed/28687041 http://dx.doi.org/10.1186/s11671-017-2217-3 Text en © The Author(s). 2017 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided 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.
spellingShingle Nano Express
Bugaychuk, Svitlana
Iljin, Andrey
Lytvynenko, Oleg
Tarakhan, Ludmila
Karachevtseva, Lulmila
Enhanced Nonlinear Optical Effect in Hybrid Liquid Crystal Cells Based on Photonic Crystal
title Enhanced Nonlinear Optical Effect in Hybrid Liquid Crystal Cells Based on Photonic Crystal
title_full Enhanced Nonlinear Optical Effect in Hybrid Liquid Crystal Cells Based on Photonic Crystal
title_fullStr Enhanced Nonlinear Optical Effect in Hybrid Liquid Crystal Cells Based on Photonic Crystal
title_full_unstemmed Enhanced Nonlinear Optical Effect in Hybrid Liquid Crystal Cells Based on Photonic Crystal
title_short Enhanced Nonlinear Optical Effect in Hybrid Liquid Crystal Cells Based on Photonic Crystal
title_sort enhanced nonlinear optical effect in hybrid liquid crystal cells based on photonic crystal
topic Nano Express
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5500608/
https://www.ncbi.nlm.nih.gov/pubmed/28687041
http://dx.doi.org/10.1186/s11671-017-2217-3
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