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VOLUME 59 (1994) | ISSUE 1 | PAGE 34
Light-induced reorientation of a smectic liquid crystal with memory
Experiments reveal that linearly polarized light (at Я = 6471 A) can convert the homeotropic texture of the smectic phase of the liquid crystal OCBP with an impurity of the azo compound methyl red into a stable confocal texture (this is a memory effect). In the latter texture, there is a predominant orientation of the confocal domains in the direction perpendicular to the electric field of the light wave.