Setting up Z-scan Experiment to Study Nonlinear Optical Properties of Polymer Composites: Characterization of ADP Doped PVA/PVP Polymer Films

Z-scan experiment to study polymer composites was setup by following the technique stated by Sheik-Bahae etal. ADP doped PVA/PVP polymer composites were synthesized by solution casting method. Optical properties were studied using UV Vis and open aperture Z-scan techniques. The third order nonlinear optical properties were investigated using 9ns pulsed Q-switch Nd: YAG laser at 1064nm with a repetition rate of 10Hz. The nonlinear absorption coefficient beta, the molecular two photon absorption cross sections sigma(1), sigma(2)', and the imaginary part of third order optical nonlinearity chi((3)) were calculated. Results indicate that these composites are potential nonlinear optical material for device application.