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

被引：8
|
作者：
Simoni, F. [1 ,2 ]
Lucchetta, D. E. [1 ,2 ]
Lucchetti, L. [1 ,2 ]
Ong, H. L. [3 ]
Serak, S. V. [4 ]
Tabiryan, N. [4 ]
机构：
[1] Univ Politecn Marche, Dipartimento Sci & Ingn Mat, Ancona, Italy
[2] Univ Politecn Marche, CNISM, Ancona, Italy
[3] Kyoritus Optron Co Ltd, Taipei 11153, Taiwan
[4] Beam Engn Adv Measurements Co, Winter Pk, FL 32789 USA
来源：
OPTICS LETTERS | 2013年 / 38卷 / 06期
关键词：
BISTABILITY; HYSTERESIS;
D O I：
10.1364/OL.38.000878
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
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. (C) 2013 Optical Society of America
引用
收藏
页码：878 / 880
页数：3
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