9 May 2007 Theoretical modeling of heterogeneous LC systems: nano-suspensions and polymer stabilized LC lens
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Abstract
Heterogeneous liquid crystal (LC) systems are a new class of anisotropic materials which have been intensively studied over the last decade. This article is concerned with two such systems: ferroelectric LC nano-suspensions and LCs with polymer network. The significant implication of ferroelectric LC-colloids is the possibility of a significant reduction in the threshold electric Fredericksz voltage. Here we present a theory of this phenomenon, which agrees qualitatively with experiment. A second example of heterogeneous LC systems is a gradient-polymer-stabilized LC (G-PSLC) structure, which has been proposed for a tunable-focus lens application. We report on theoretical model that describes the dependence of the G-PSLC lens focal length on applied voltage. A previous model is improved by considering light absorption during the polymerization. Again we find qualitative agreement with the experimental data.
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Viktor Yu. Reshetnyak, Sergii M. Shelestiuk, Svitlana L. Subota, Svitlana Pavliuchenko, Timothy J. Sluckin, "Theoretical modeling of heterogeneous LC systems: nano-suspensions and polymer stabilized LC lens", Proc. SPIE 6587, Liquid Crystals and Applications in Optics, 658709 (9 May 2007); doi: 10.1117/12.722687; https://doi.org/10.1117/12.722687
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