Light-induced instabilities in photo-oriented liquid crystal cells

Autor:	Jánossy, I., Fodor-Csorba, K., Vajda, A., Palomares, L. O., Tóth-Katona, T.
Rok vydání:	2014
Předmět:	Condensed Matter - Soft Condensed Matter Physics - Optics
Druh dokumentu:	Working Paper
Popis:	In a planar liquid crystal sample sandwiched between a photosensitive and a reference plate instabilities occurred, when the cell was illuminated from the reference side. The instabilities were induced both by polarized white light source and monochromatic laser beams. Static and dynamic regimes were found; for laser irradiation dynamic instability was found only in a range of polarization directions. A model, developed for monochromatic excitation, predicts that at certain thicknesses dynamic instability is forbidden. Experiments on a wedge-like cell confirmed this conclusion. Comment: to appear in Mol. Cryst. Liq. Cryst
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1401.1592 Zobrazit plný text záznamu View this record from Arxiv