Optical properties of ferroelectric Pb, La/ Zr, Ti/O thin films 3 grown by pulsed laser deposition

Ferroelectric Pb0.95La0.05Zr0.53Ti0.47O3 PLZT.thin films were prepared on quartz substrates by pulsed laser deposition PLD.technique at a deposition temperature of 7508C. The crystalline structure of the film was evaluated by X-ray diffraction. The dispersion of refractive indices and optical nonlinearities of the PLZT thin films were investigated by optical transmittance and Z-scan techniques, respectively. The film exhibited strong third-order nonlinear optical effect. A nonlinear refractive index as high as 1.3=10y6 esu was displayed in the PLZT thin film. These results show that PLZT ferroelectric thin films have potential applications in nonlinear optics. q2000 Published by Elsevier Science B.V.