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Proceedings Paper

Theoretical modeling of heterogeneous LC systems: nano-suspensions and polymer stabilized LC lens
Author(s): Viktor Yu. Reshetnyak; Sergii M. Shelestiuk; Svitlana L. Subota; Svitlana Pavliuchenko; Timothy J. Sluckin
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Paper 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.

Paper Details

Date Published: 9 May 2007
PDF: 12 pages
Proc. SPIE 6587, Liquid Crystals and Applications in Optics, 658709 (9 May 2007); doi: 10.1117/12.722687
Show Author Affiliations
Viktor Yu. Reshetnyak, National Taras Shevchenko Univ. of Kyiv (Ukraine)
Sergii M. Shelestiuk, National Taras Shevchenko Univ. of Kyiv (Ukraine)
Svitlana L. Subota, National Taras Shevchenko Univ. of Kyiv (Ukraine)
Svitlana Pavliuchenko, National Taras Shevchenko Univ. of Kyiv (Ukraine)
Timothy J. Sluckin, Univ. of Southampton (United Kingdom)

Published in SPIE Proceedings Vol. 6587:
Liquid Crystals and Applications in Optics
Milada Glogarova; Peter Palffy-Muhoray; Martin Copic, Editor(s)

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