Field-induced Bragg diffraction in polymer stabilized cholesteric liquid crystal bubbles

Andrii Varanytsia; Liang-Chy Chien

doi:10.1117/12.2175589

11 March 2015 Field-induced Bragg diffraction in polymer stabilized cholesteric liquid crystal bubbles

Andrii Varanytsia, Liang-Chy Chien

Proceedings Volume 9384, Emerging Liquid Crystal Technologies X; 93840J (2015) https://doi.org/10.1117/12.2175589
Event: SPIE OPTO, 2015, San Francisco, California, United States

Abstract

Cholesteric liquid crystals (CLC) with a specific confinement conditions are known to form bubble domain (BD) texture. We have developed the CLC BD texture stabilized with a small amount of polymer. CLC bubbles of a BD texture self-assemble into domains with a hexagonal ordering and optically perform as a diffraction grating. By stabilization of the BD texture with a polymer we have improved optical quality of the diffractive CLC layer and have increased its mechanical stability. We discuss details about samples preparation, Bragg diffraction, electro-optical performance and present results of scanning electron microscopy (SEM) morphological study of the polymer network formed in the bulk of the diffractive liquid crystal layer.

Citation Download Citation

Andrii Varanytsia and Liang-Chy Chien "Field-induced Bragg diffraction in polymer stabilized cholesteric liquid crystal bubbles", Proc. SPIE 9384, Emerging Liquid Crystal Technologies X, 93840J (11 March 2015); https://doi.org/10.1117/12.2175589

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