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Bulgarian Journal of Physics
Print: 1310-0157 Online: 1314-2666
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RECOGNIZED BY THE EUROPEAN PHYSICAL SOCIETY 
Bulg. J. Phys. vol.31 no.1-2 (2004), pp. 33-38
Optical Properties of Polymer Dispersed Cholesteric Liquid Crystals
Y. Sarov1, T. Angelov2, S. Sainov1
1Central Laboratory of Optical Storage and Processing of Information, Bulgarian Academy of Sciences, 1113 Sofia, P.O. Box 95, Bulgaria
2Institute of Solid State Physics, Bulgarian Academy of Sciences, 72 Tzarigradsko Chaussee Blvd, 1784 Sofia, Bulgaria
go back1Central Laboratory of Optical Storage and Processing of Information, Bulgarian Academy of Sciences, 1113 Sofia, P.O. Box 95, Bulgaria
2Institute of Solid State Physics, Bulgarian Academy of Sciences, 72 Tzarigradsko Chaussee Blvd, 1784 Sofia, Bulgaria
Abstract. Polymer dispersed liquid crystals are composed materials consisting of micron-sized liquid crystal droplets dispersed in dielectric matrix. They have important applications as light shutters, flexible displays, switchable windows, temperature indicators, etc. In this work refractometric investigation of cholesteric liquid crystals, dispersed by ultrasonication in a polymer matrix, are reported. Refractive index measurements are performed at different wavelengths in the visible range and the liquid crystals RI dispersion behavior is determined.