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Proceedings Paper

Photorefractive amplification of dynamic light signals using photoconductive ferroelectric liquid crystals
Author(s): Takeo Sasaki
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Paper Abstract

The photorefractive effect in photoconductive ferroelectric liquid crystal blends containing photoconductive chiral compounds was investigated. Terthiophene compounds possessing chiral structures were mixed with an achiral smectic C liquid crystal mixture. The blends exhibit the ferroelectric chiral smectic C phase. The photorefractivity of the liquid crystal blends was investigated by two-beam coupling experiments. The photoconductive ferroelectric liquid crystal blends prepared in this study exhibited a large gain coefficient of over 1200 cm-1 and a fast response time shorter than 1 ms. Amplification of an moving optical image signal of over 30 fps using the photorefractive ferroelectric liquid crystal was demonstrated.

Paper Details

Date Published: 8 May 2015
PDF: 9 pages
Proc. SPIE 9508, Holography: Advances and Modern Trends IV, 95080C (8 May 2015); doi: 10.1117/12.2178730
Show Author Affiliations
Takeo Sasaki, Tokyo Univ. of Science (Japan)

Published in SPIE Proceedings Vol. 9508:
Holography: Advances and Modern Trends IV
Miroslav Hrabovský; John T. Sheridan; Antonio Fimia, Editor(s)

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