CUED Publications database

Photomechanically induced phase transitions in ferroelectric liquid crystals

Walton, HG and Coles, HJ (1993) Photomechanically induced phase transitions in ferroelectric liquid crystals. Ferroelectrics, 147. pp. 223-240. ISSN 0015-0193

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Abstract

We report optically induced phase transitions occurring in two different host ferroelectric liquid crystals. These act as host liquid crystals for a novel gust azo dye, which can be made to photoisomerise using low power density U.V. illumination, resulting in dramatic changes in sample properties. We have shown that the magnitude of spontaneous polarization of systems can be isothermally and reversibly induced or reduced, with the consequent appearance or disappearance of optical switching hysteresis.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div B > Photonics
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 11:29
Last Modified: 08 Dec 2014 02:31
DOI: