Abstract
Liquid crystals such as nematic liquid crystals and ferroelectric smectic liquid crystals are well infiltrated in photonic crystal, synthetic opal. Dielectric and optical properties of liquid crystals have been found to exhibit remarkable change upon infiltration in the opal. Diffraction and transmission of light through opals have been found to change upon infiltration of liquid crystal in opals and also upon field application. Relaxation of dielectric response in liquid crystals infiltrated in opal shifted to higher frequency and its temperature dependence has also changed. Electro-optic effect of the opal infiltrated with liquid crystals have been also discussed. These results have been discussed in terms of interaction of liquid crystal molecule in nano-space and the inner surface of the nano-scale void in the photonic crystal, synthetic opal.
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