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Proceedings Paper

Photorefractive effect in ferroelectric liquid crystals containing oligo-thiophene chiral compounds
Author(s): Takeo Sasaki; Masashi Ikegami; Satoshi Kajikawa; Yumiko Naka
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Paper Abstract

The photorefractive effect in photoconductive ferroelectric liquid crystals (FLCs) that contain oligo-thiophene chiral compounds was investigated. Ter-thiophene and quarto-thiophene compounds with chiral structures were chosen as the photoconductive chiral compounds and mixed with an achiral smectic C liquid crystal. The mixtures exhibit the ferroelectric chiral smectic C phase. The photorefractivity of the mixtures was investigated by two-beam coupling experiments. It was found that the FLCs containing the photoconductive chiral compound exhibit a large gain coefficient of over 990 cm-1 and a fast response time of 1.7 ms.

Paper Details

Date Published: 12 September 2013
PDF: 8 pages
Proc. SPIE 8828, Liquid Crystals XVII, 882805 (12 September 2013); doi: 10.1117/12.2022580
Show Author Affiliations
Takeo Sasaki, Tokyo Univ. of Science (Japan)
Masashi Ikegami, Tokyo Univ. of Science (Japan)
Satoshi Kajikawa, Tokyo Univ. of Science (Japan)
Yumiko Naka, Tokyo Univ. of Science (Japan)


Published in SPIE Proceedings Vol. 8828:
Liquid Crystals XVII
Iam Choon Khoo, Editor(s)

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