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Proceedings Paper

Real-time formation of dynamic hologram in photorefractive ferroelectric liquid crystals
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 photoconductive chiral compounds was investigated. A series of novel photoconductive chiral compounds were synthesized. Terthiophene compounds with four 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 800 cm-1 and a fast response time of 8 ms.

Paper Details

Date Published: 11 October 2012
PDF: 8 pages
Proc. SPIE 8474, Optical Processes in Organic Materials and Nanostructures, 84740S (11 October 2012); doi: 10.1117/12.930587
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. 8474:
Optical Processes in Organic Materials and Nanostructures
Rachel Jakubiak; Manfred Eich; Jean-Michel Nunzi, Editor(s)

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