27 June 2002 Influence of light on self-diffraction process in liquid crystal cells with photoconducting polymeric layers
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Proceedings Volume 4759, XIV Conference on Liquid Crystals: Chemistry, Physics, and Applications; (2002) https://doi.org/10.1117/12.472185
Event: XIV Conference on Liquid Crystals, Chemistry, Physics, and Applications, 2001, Zakopane, Poland
Abstract
In this paper we present experimental results on the influence of an external light on phase grating recording process in nematic liquid crystal cell with a photoconducting polymeric layer (PVK doped with TNF). Depending on voltage applied to the cell the external light can amplify on attenuate the diffracted into first order light power measured in degenerate two-wave mixing experiment. From the time delay between the opening of the external light and the moment of diffraction signal change we deduce an information about the effective charge carriers mobilities in PVK:TNF polymeric layer. We also discuss and present simple explanation of the observed effect.
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Jaroslaw Mysliwiec, Jaroslaw Mysliwiec, Andrzej Miniewicz, Andrzej Miniewicz, Stanislaw Bartkiewicz, Stanislaw Bartkiewicz, } "Influence of light on self-diffraction process in liquid crystal cells with photoconducting polymeric layers", Proc. SPIE 4759, XIV Conference on Liquid Crystals: Chemistry, Physics, and Applications, (27 June 2002); doi: 10.1117/12.472185; https://doi.org/10.1117/12.472185
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