Quasi-phase matched second harmonic generation in a PMN-38PT crystal
Xin Chen, Leszek Mateusz Mazur, Dawei Liu, Shan Liu, Xin Liu, Zhuo Xu, Xiaoyong Wei, Junli Wang, Yan Sheng, Zhiyi Wei, Wiesław Królikowski
Abstract
We used an all-optical poling method to fabricate quadratic nonlinearity gratings in a tetragonal 0.62Pb(Mg 1/3 Nb 2/3 )O 3 -0.38PbTiO 3 (PMN-38PT) crystal. We then employed these gratings in quasi-phase matched collinear second harmonic generation processes. By measuring the second harmonic output, we provided, for the first time, to the best of our knowledge, quantitative estimates of all three non-zero quadratic nonlinearity coefficients of the PMN-38PT crystal.
Topics & Concepts
OpticsSecond-harmonic generationPolingCrystal (programming language)Materials scienceQuadratic equationNonlinear opticsPhase (matter)Tetragonal crystal systemHarmonicHigh harmonic generationNonlinear systemPhase matchingRefractive indexPhysicsOptoelectronicsLaserMathematicsComputer scienceAcousticsQuantum mechanicsFerroelectricityGeometryProgramming languageDielectricPhotorefractive and Nonlinear OpticsAdvanced Fiber Laser TechnologiesPhotonic and Optical Devices