Dopant effect on the nonlinear optical properties of TiO2-PMMA nano composites for optical limiter applications

Abstract EN

In this paper the effect of ZnO dopant on the nonlinear optical behavior of TiO2-PMMA Nano composites films was studied.

TiO2-PMMA Nano composites films were prepared using solution casting method then doped with different amounts of ZnO nanoparticles.

Z-Scan measurements were performed to obtain the nonlinear optical response of these samples at 1064nm using CW Nd- YAG laser.

The addition of ZnO nanoparticle into the Nano composites showed a great enhancement in the nonlinear optical response and decreasing in limiting threshold (10 mW) as the dopants concentration increased.