Second-harmonic generation with magnetic-field controllability.
Based on density functional theory with the generalized gradient approximation plus on-site Coulomb repulsion method, we study the magnetic-ordering dependence of second-harmonic generation (SHG) in a polar magnet BiCoO(3). The large second-order optical susceptibility, which can reach 3.7x10(-7) esu, exhibits a strong magnetic-ordering dependence, giving rise to magnetic-field controllable SHG response in polar magnets.
Ju
Sheng
S
Department of Physics and Jiangsu Key Laboratory of Thin Films, Soochow University, Suzhou 215006, China. jusheng@suda.edu.cn
Cai
Tian-Yi
TY
Wei
Chi-I
CI
Guo
Guang-Yu
GY