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Proceedings Paper

Effect of chiral concentration of chiral smectic C liquid crystal mixture on the photorefractive property
Author(s): Takeo Sasaki
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Paper Abstract

The effect of the concentration of chiral compound on the photorefractive effect of smectic liquid crystal blends containing small amounts of a chiral compound was investigated. Photorefractive ferroelectric liquid crystal blends, composed of smectic-C liquid crystals, photoconductive chiral compounds and a sensitizer, are known to exhibit a large photorefractive effect. Smectic liquid crystal blends containing various concentrations of a chiral compound while keeping a constant concentration of photoconductive moiety were prepared. The effect of the concentration of the chiral compound on the photorefractive properties of the liquid crystal blend was investigated. It was found that smectic-C liquid crystals containing small amounts of chiral compound showed a large photorefractivity even though they did not exhibit ferroelectricity. The large photorefractivity of the chiral smectic-C phase was attributed to an apearance of the flexoelectric effect.

Paper Details

Date Published: 1 April 2020
PDF: 10 pages
Proc. SPIE 11367, Photosensitive Materials and their Applications, 113670V (1 April 2020); doi: 10.1117/12.2554925
Show Author Affiliations
Takeo Sasaki, Tokyo Univ. of Science (Japan)

Published in SPIE Proceedings Vol. 11367:
Photosensitive Materials and their Applications
Robert R. McLeod; Inmaculada Pascual Villalobos; Yasuo Tomita; John T. Sheridan, Editor(s)

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