First-order optical Freedericksz transition in a dye-doped nematic liquid crystal.

Abstract

A first-order optical Freedericksz transition in a nematic liquid crystal doped by a small quantity of a dichroic dye with negative dichroism is observed. The initial homeotropic state corresponds to maximum absorption for the linearly polarized incident beam, while reorientation reduces absorption increasing the optical torque: this process produces the positive feedback leading to the observed bistable behavior.

DOI: 10.1364/OL.38.000878

Cite this paper

@article{Simoni2013FirstorderOF, title={First-order optical Freedericksz transition in a dye-doped nematic liquid crystal.}, author={Francesco Simoni and Daniele E Lucchetta and Liana Lucchetti and H. L. Ong and Svetlana V. Serak and Nelson V. Tabiryan}, journal={Optics letters}, year={2013}, volume={38 6}, pages={878-80} }