Title

Polymer-stabilized blue phase liquid crystal with a negative Kerr constant

Authors

Authors

Y. Li; Y. Chen; J. Yan; Y. F. Liu; J. P. Cui; Q. H. Wang;S. T. Wu

Comments

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Abbreviated Journal Title

Opt. Mater. Express

Keywords

DISPLAYS; FIELD; Materials Science, Multidisciplinary; Optics

Abstract

A polymer-stabilized blue-phase liquid crystal (BPLC) with a negative Kerr constant is reported. In a voltage-on state, the double-twist BPLC molecules within the lattice cylinders are reoriented perpendicular to the applied electric field because of their negative dielectric anisotropy. As a result, the induced birefringence has a negative value, which leads to a negative Kerr constant. The negative sign of Kerr constant is experimentally validated by using a quarter-wave plate and a vertical field switching cell. Such a BPLC shows a negligible (similar to 1%) hysteresis and fast response time (similar to 1ms) at the room temperature, although its Kerr constant is relatively small because the employed host has a small Delta epsilon. (C)2012 Optical Society of America

Journal Title

Optical Materials Express

Volume

2

Issue/Number

8

Publication Date

1-1-2012

Document Type

Article

Language

English

First Page

1135

Last Page

1140

WOS Identifier

WOS:000307117600017

ISSN

2159-3930

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