Dynamic holography application for polyimide liquid crystal structures investigation

Yuri O. Barmenkov; Natalia V. Kamanina; Nikolai M. Kozhevnikov; Margarita Yu. Lipovskaja; Natalie A. Vasilenko

doi:10.1117/12.271700

4 April 1997 Dynamic holography application for polyimide liquid crystal structures investigation

Yuri O. Barmenkov, Natalia V. Kamanina, Nikolai M. Kozhevnikov, Margarita Yu. Lipovskaja, Natalie A. Vasilenko

Proceedings Volume 3093, Nonresonant Laser-Matter Interaction (NLMI-9); (1997) https://doi.org/10.1117/12.271700
Event: Nonresonant Laser-Matter Interaction, 1996, St. Petersburg, Russian Federation

Abstract

A dynamic holographic technique based on two phase-modulated coherent optical bemas 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 complicated non-monotonous behavior which could be a result of the photoexcited electric charge drift and diffusion.

Citation Download Citation

Yuri O. Barmenkov, Natalia V. Kamanina, Nikolai M. Kozhevnikov, Margarita Yu. Lipovskaja, and Natalie A. Vasilenko "Dynamic holography application for polyimide liquid crystal structures investigation", Proc. SPIE 3093, Nonresonant Laser-Matter Interaction (NLMI-9), (4 April 1997); https://doi.org/10.1117/12.271700

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