Dielectric properties of a side-chain liquid crystalline polymer under laser induced circumstances

Abstract

Electro optical properties of a side-chain liquid crystalline polymer (SLCP) are investigated by concerning the laser induced effects on molecular reorientation. In the scope of this work, various measurements were performed to see the effect of laser illumination on the system including a polymer component mixed in E7 coded nematic host. Experimental results exhibit dependency on laser illumination at the level of switching voltage in reorientation process and electro optical parameters are investigated by the dependency of dissipation factor in dark and laser induced circumstances for polymer doped and no-polymered samples. Dielectric anisotropy dependency is also studied for the mentioned conditions and its dependency is quantitatively estimated by capacitive measurements. (C) 2004 Elsevier B.V. All rights reserved.