Control of the Electro-Optic Bistability of Some Ferroelectric Liquid Crystals Useful for Binary Phase Optical Modulators
作者:
I.G. Manolis,
M.M. Redmond,
W.A. Crossland,
A.B. Davey,
T.D. Wilkinson,
期刊:
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals
(Taylor Available online 2000)
卷期:
Volume 351,
issue 1
页码: 305-314
ISSN:1058-725X
年代: 2000
DOI:10.1080/10587250008023280
出版商: Taylor & Francis Group
关键词: Smectic C* phase;high tilt angle;bistability;Phase Modulation;Organosi-loxanes;Spatial Light Modulators
数据来源: Taylor
摘要:
We report measurements on the bistability of the electrooptic response of a commercially available material (CS2005) and an experimental liquid crystal material (CDRR8) based on an organosiloxane structure. Both materials have a first order transition to the SmC* phase. CS2005 gave the normal monostable behaviour with layers tilted with respect to the rubbing direction. However, the second material, CDRR8, exhibited true bistability and at the same time its smectic layers were found to lie perpendicularly to the rubbing direction. We were able to control the bistable behaviour of the CDRR8 material by means of layer rotation using asymmetrical triangular pulses. As expected the sample shows a monostable response each time the layers are rotated so that one of the two switched states approaches the rubbing direction.
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