Real Time Amplification of Moving Light Signals by Photorefractive Ferroelectric Liquid Crystal Mixtures

  • Takeo SasakiEmail author
  • Yumiko Naka
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 166)


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.


Interference Fringe Spontaneous Polarization Spatial Light Modulator Signal Beam Gain Coefficient 
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Copyright information

© Springer India 2015

Authors and Affiliations

  1. 1.Department of Chemistry, Faculty of ScienceTokyo University of ScienceShinjuku-kuJapan

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