Dynamic holography application for polyimide-liquid crystal structures investigation

被引:3
作者
Barmenkov, YO
Kamanina, NV
Kozhevnikov, NM
Lipovskaja, MY
Vasilenko, NA
机构
来源
NONRESONANT LASER-MATTER INTERACTION (NLMI-9) | 1997年 / 3093卷
关键词
dynamic holography; liquid crystal; spatial light modulator; non-linear photoresponse;
D O I
10.1117/12.271700
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A dynamic holographic technique based on two phase-modulated coherent optical beams mixing was applied for a photoconductor polyimide-liquid crystal structure investigation. Deep modulation of the output beams intensities confirmed high optical non-linearity of these structures. A spatial mismatch between the beams interference pattern and the recorded grating was observed indicating the liquid crystal molecules orientational anisotropy. The kinetics of holographic gratings recording and erasure demonstrated a complicate non-monotonous behavior which could be a result of the photoexcited electric charge drift and diffusion.
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页码:31 / 34
页数:4
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