High contrast chiral nematic liquid crystal device using negative dielectric material

被引：18
|
作者：
Choi, Su Seok [1 ]
Castles, Flynn [1 ]
Morris, Stephen M. [1 ]
Coles, Harry J. [1 ]
机构：
[1] Univ Cambridge, Dept Engn, Elect Engn Div, Ctr Mol Mat Photon & Elect, Cambridge CB3 0FA, England
来源：
APPLIED PHYSICS LETTERS | 2009年 / 95卷 / 19期
基金：
英国工程与自然科学研究理事会;
关键词：
Light transmission;
D O I：
10.1063/1.3248219
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A liquid crystal device is demonstrated using it short-pitch (260 nm) chiral nematic with negative dielectric anisotropy. Due to dielectric coupling, an in-plane electric field switches the liquid crystal between the standing-helix (field-off, "dark" state) and lying-helix (field-on, transmissive state) configurations. We report experimental results on the optical transmission as a function of the applied field, the response time (as short as 35 microseconds) and the contrast ratio (1000.1). (C) 2009 American Institute of Physics. [doi:10.1063/1.3248219]
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页数：3
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