Giant nonlinear optical properties of Bi3.25la 0.75Ti3O12 ferroelectric thin films on quartz substrate

Abstract

The nonlinear properties of Bi3.25La0.75Ti 3O12 thin film grown on quartz substrate is measured using the Z-scan technique with ps-laser pulses at 532-nm wavelength. The nonlinear refractive index and absorption coefficients are 0.31×10-9 cm2/W and 3×10-5 cm/W, respectively, indicating Bi3.25La0.75Ti3O12 film on quartz is a good candidate for applications in nonlinear optical devices.