Influence of grating period on kinetics of self-diffraction in nematic liquid crystal panel with photoconducting polymeric layer

Sznitko, Lech; Anczykowska, Agata; Mysliwiec, Jaroslaw; Bartkiewicz, Stanislaw
March 2010
Applied Physics Letters;3/15/2010, Vol. 96 Issue 11, p111106
Academic Journal
The authors report on grating spacing influence on self-diffraction phenomenon in nematic liquid crystal panel with photoconducting polymeric layer. For grating recording typical degenerated two-wave mixing experimental set-up was used. Self-diffraction was induced by neodymium doped yttrium aluminum garnet laser (Nd:YAG, λ=532 nm) and for the observation of temporal changes of diffraction efficiency in function of grating period (angle between two recording beams coming from the Nd:YAG laser) laser diode (λ=674) was used. Mathematical model for grating formation based on coupling of three gratings was proposed. Theoretical estimations and experimental results have shown very good agreement.


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