AVS 66th International Symposium & Exhibition
    Electronic Materials and Photonics Division Thursday Sessions
       Session EM-ThP

Paper EM-ThP5
Optical and Nonlinear Optical Properties of (1-x)Pb(Mg1/3Nb2/3)O3-xPbTiO3 Thin Films Grown by Pulsed Laser Deposition

Thursday, October 24, 2019, 6:30 pm, Room Union Station B

Session: Electronic Materials and Photonics Poster Session
Presenter: Da-Ren Liu, Taiwan Instrument Research Institute, Taiwan, Republic of Korea
Correspondent: Click to Email
Thin film optical devices have been especially attractive because of their potential for the integration with electronic and optoelectronic systems. Owing to its ferroelectricity, pyroelectricity, high dielectric constant and large electro-optic coefficients, lead magnesium niobate-lead titanate (PMN-PT) can be used in many applications that include pyroelectric detectors, actuators, integrated capacitors, and nonlinear optical devices. In this study, highly textured thin films of lead magnesium niobate-lead titanate were grown by pulsed laser deposition (PLD). The measurement of glancing-angle x-ray powder diffraction (GAXRD) was used to determine the structure of the PMN-PT films. The thickness and roughness of the films were characterized by grazing-incidence x-ray reflectivity (GIXR), and the complex refractive indices were measured in the range from 1.5 to 4.1 eV by spectroscopic ellipsometry (SE). The average oscillator strength and its associated wavelength were estimated by using a Sellmeier-type dispersion equation. Z-scan measurements were performed to study the third-order optical nonlinearity. It was found that the PMN-PT films exhibited strong nonlinear optical effect. The results show that PMN-PT thin films are promising materials for nonlinear optics.