Model for simulation of photo-induced charges inside the hybrid LC cells.

Paweł Moszczyński, Andrzej Walczak, Piotr Marciniak

Abstract


The mathematical model for quantitative description of the liquid crystal (LC) layer deformation inside an asymmetric hybrid liquid crystalline cell is presented. Asymmetry means that one aligning layer in the cell is composed as photoconductive polymer PVK:TNF while the second is covered with common aligning material (polyimide). The LC waveguide arises along laser beam path propagated in plane of LC layer (refraction of light is not presented). In presented model we proved that LC layer deformation is caused by synergy of electric fields: driving field, space charge field, and fields of the surface charge cumulated on facing borders PVK:TNF/ITO and PVK:TNF/LC.

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Photonics Letters of Poland - A Publication of the Photonics Society of Poland
Published in cooperation with SPIE

ISSN: 2080-2242