Dielectric effect, nonlinear, liquid crystals

Like solid ferroelectrics, the ferroelectric liquid crystals, particularly the FLCPs, show a pyroelectric effect and a piezoelectric effect and are capable of switching polarization direction (dielectric hysteresis). Moreover, they can switch propagating or reflected polarized light. Finally, the polar symmetry of the phase leads to nonlinear optical properties of the FLCPs such as second-harmonic generation, the Pockels effect, and the Kerr effect. These physical properties of the ferroelectric LC polymers are discussed in the following sections. [Pg.1163]

Deshmukh RR, Malik MK (2008b) Effects of the composition and nematic-isotropic phase transition on the electro-optical responses of unaligned polymer-dispersed liquid crystals. I. Composites of poly(methyl methacrylate) and E8. J Appl Polym Sci 108 3063-3072 Deshmukh RR, Malik MK, Parab SS (2012a) Dichroic dye induced nonlinearity in polymer dispersed liquid crystal materials for display devices. Adv Mater Res 584 79-83 Deshmukh RR, Parab SS, Malik MK (2012b) Effect of host polymer matrices on electro optical and dielectric behavior of polymer dispersed liquid crystal system. Adv Mater Res 584 531-535... [Pg.192]