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Light-induced gliding of the easy orientation axis of a dye-doped nematic liquid crystal.

作者信息

Fedorenko Denis, Slyusarenko Kostyantyn, Ouskova Elena, Reshetnyak Victor, Ha KiRyong, Karapinar Ridvan, Reznikov Yuriy

机构信息

Institute of Physics, National Academy of Sciences of Ukraine, 46 Prospect Nauki, Kyiv, Ukraine.

出版信息

Phys Rev E Stat Nonlin Soft Matter Phys. 2008 Jun;77(6 Pt 1):061705. doi: 10.1103/PhysRevE.77.061705. Epub 2008 Jun 12.

DOI:10.1103/PhysRevE.77.061705
PMID:18643285
Abstract

We studied the effect of light-induced gliding of the easy axis of dye-doped nematic liquid crystal on an aligning polymer surface. The observed drift of the easy axis is over tens of degrees and is caused by light-induced anisotropic adsorption and/or desorption of dye molecules on or from the aligning layer in the presence of light-induced bulk torque. We present a theoretical model that explains the experimental data in terms of the light-induced changes of the adsorbed dye molecules angular distribution due to their exchange with the dye molecules from the liquid crystal bulk.

摘要

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