The experimental and theoretical analysis of linear and nonlinear optical properties of K3B6O10Br (KBOB), with a moderate birefringence that is suitable for UV coherent light generation and optical parametric oscillators, is presented in detail. The second-order nonlinear optical coefficients were measured by the Maker fringe method and the refractive indices dispersion curves were deduced by the minimum deviation technique at 16 different monochromatic sources from UV to NIR, and then the type I and type II phase-matching curves of second, third, and fourth harmonic generation (SHG, THG, and FHG) were calculated. Moreover, the correlations of crystallographic and crystallophysical axes were determined. On the basis of the density functional theory (DFT), the first-principles calculations have been employed successfully to study the structural and electronic properties of KBOB. In addition, to gain further insight into the structure-property relationship, the SHG density method was adopted to analyze the origin of the nonlinear optical response of KBOB.
Chinese Acad Sci, Key Lab Funct Mat & Devices Special Environm, Xinjiang Tech Inst Phys & Chem, Xinjiang Key Lab Elect Informat Mat & Devices, Urumqi 830011, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Zhang, Min,Su, Xin,Pan, Shilie,et al. Linear and Nonlinear Optical Properties of K3B6O10Br Single Crystal: Experiment and Calculation[J]. Journal of Physical Chemistry C,2014,118(22):11849-11856.