Electro-optical properties of mixtures with the induced antiferroelectric phase

Wojciech Kuczynski; Roman S. Dabrowski; S. Gauza; F. Goc; Jerzy Hoffmann; Krzysztof L. Czuprynski; J. Drzewinski; K. Kenig

doi:10.1117/12.385662

12 May 2000 Electro-optical properties of mixtures with the induced antiferroelectric phase

Wojciech Kuczynski, Roman S. Dabrowski, S. Gauza, F. Goc, Jerzy Hoffmann, Krzysztof L. Czuprynski, J. Drzewinski, K. Kenig

Author Affiliations +

Proceedings Volume 4147, Liquid Crystals: Chemistry, Physics, and Applications; (2000) https://doi.org/10.1117/12.385662
Event: XIII International Conference on Liquid Crystals: Chemistry, Physics, and Applications, 1999, Krynica Zdroj, Poland

Abstract

In some mixtures composed of ferroelectric components the induced antiferroelectric phase was observed. Two mixtures of this kind, both exhibiting antiferroelectric order in a broad concentration range, were investigated. The effect of electric field of various strengths on optical properties of these mixtures was studied. In small electric fields the modulation of light intensity occurred, which amplitude in ferroelectric phase was much higher than in the antiferroelectric one. In mixtures with induced antiferroelectric phase we detected a large hysteresis of the transition temperature between ferroelectric and antiferroelectric sates. In high electric fields thresholdless switching was observed in the hysteresis range. The presence of the thermal hysteresis of the C_A^* - C^* phase transition can be considered as a mark of the V-shaped switching. In bulk samples the C^*- phase is stable in, this temperature region, where the V- shaped switching was observed in thin samples.

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Wojciech Kuczynski, Roman S. Dabrowski, S. Gauza, F. Goc, Jerzy Hoffmann, Krzysztof L. Czuprynski, J. Drzewinski, and K. Kenig "Electro-optical properties of mixtures with the induced antiferroelectric phase", Proc. SPIE 4147, Liquid Crystals: Chemistry, Physics, and Applications, (12 May 2000); https://doi.org/10.1117/12.385662

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