Light-induced instabilities in photo-oriented liquid crystal cells
Soft Condensed Matter
2014-01-09 v1 Optics
Abstract
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.
Cite
@article{arxiv.1401.1592,
title = {Light-induced instabilities in photo-oriented liquid crystal cells},
author = {I. Jánossy and K. Fodor-Csorba and A. Vajda and L. O. Palomares and T. Tóth-Katona},
journal= {arXiv preprint arXiv:1401.1592},
year = {2014}
}
Comments
to appear in Mol. Cryst. Liq. Cryst