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22 April 2008 Polarization resolved conoscopic patterns in nematic cells: effects induced by the incident light ellipticity
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Proceedings Volume 7008, Eighth International Conference on Correlation Optics; 70080B (2008) https://doi.org/10.1117/12.796649
Event: Eighth International Conference on Correlation Optics, 2007, Chernivsti, Ukraine
Abstract
Topological structure of the polarization resolved conoscopic patterns, calculated theoretically and measured experimentally for nematic liquid crystal (NLC) cells, is described in terms of polarization singularities, saddle points and bifurcation lines. The parametric dynamics of the topological network, induced by the variation of the incident light ellipticity, is analyzed for the nematic cells with uniform and non-uniform director configuration. Different stages of similar dynamics are observed for homeotropically oriented NLC cell. Non-uniform director configuration within the cell results in broken central symmentry in the arrangement of the topological network. Main features of the experimentally obtained polarization resolved conoscopic patterns are the same to the theoretically predicted ones.
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Igor O. Buinyi, Marat S. Soskin, and Roman G. Vovk "Polarization resolved conoscopic patterns in nematic cells: effects induced by the incident light ellipticity", Proc. SPIE 7008, Eighth International Conference on Correlation Optics, 70080B (22 April 2008); https://doi.org/10.1117/12.796649
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