Preliminary communication Optical storage effect in a discotic columnar liquid crystal

Author: Forget S.   Kitzerow H-S.  

Publisher: Taylor & Francis Ltd

ISSN: 0267-8292

Source: Liquid Crystals, Vol.23, Iss.6, 1997-12, pp. : 919-922

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Abstract

Exposing a uniformly aligned discotic columnar liquid crystal to an argon ion laser beam results in a reorientation, thereby changing the optical properties of the liquid crystal. We have studied this new optical storage effect for a polymer dispersed metallomesogenic compound which exhibits a columnar phase at room temperature. The writing energy is 3.5J cm -2. The stored information can be erased by heating and subsequent shearing of the sample.