Abstract

We show the possibility of detecting small anisotropies in holographic polymer dispersed liquid-crystal samples, using a simple experimental setup that allows us to determine the behavior of the diffraction efficiency versus incident angle for two reading polarizations. This analysis is extremely sensitive to small changes in the parameters that define the grating anisotropy, giving us a way to determine with great accuracy the components of the modulated part of the dielectric tensor.

© 2003 Optical Society of America

Total-internal-reflection mode in holographic polymer dispersed liquid crystals

H. Xianyu, J. Qi, R. F. Cohn, and G. P. Crawford
Opt. Lett. 28(10) 792-794 (2003)

Diffraction properties of highly birefringent liquid-crystal composite gratings

James J. Butler and Michelle S. Malcuit
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Electro-optic properties of switchable gratings made of polymer and nematic liquid-crystal slices

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Opt. Lett. 29(12) 1405-1407 (2004)

Polarization and switching properties of holographic polymer-dispersed liquid-crystal gratings. I. Theoretical model

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J. Opt. Soc. Am. B 19(12) 2995-3003 (2002)

Edge-enhanced imaging with polyvinyl alcohol /acrylamide photopolymer gratings

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Opt. Lett. 28(17) 1510-1512 (2003)