Instabilities induced by Light in Liquid Crystal Cells with a Photo-Responsive Substrate
Abstract
Instabilities are discussed which take place when a nematic liquid crystal (LC) layer, enclosed between a planar reference plate and a photosensitive substrate, is illuminated with polarized light from the reference side ({\it reverse} geometry). The dependence of the observed effects on the wavelength, polarization direction of the light, and on the thickness of the LC layer is explained by a model based on photoinduced surface torque. The application possibilities of the phenomena are also explored.
- Publication:
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arXiv e-prints
- Pub Date:
- September 2014
- DOI:
- 10.48550/arXiv.1409.2152
- arXiv:
- arXiv:1409.2152
- Bibcode:
- 2014arXiv1409.2152T
- Keywords:
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- Condensed Matter - Soft Condensed Matter
- E-Print:
- 7 pages, 4 figures