supported by the National Natural Science Foundation of the People's Republic of China “Mechanistic study of the influence of ns~2 cation intrinsic properties and coordination environment on birefringence and frequency doubling effects”(12264047),“The study of the mechanism of the influence of lead-oxygen polyhedra and their coordination environments on the gain of the frequency doubling effect”(11864040); Tianshan Talent Project of Xinjiang Uygur Autonomous Region of China “Design,synthesis and photofunctional study of novel rare earth phosphate materials”(2022TSYCJU0004)