1College of Physics and Electronic Engineering, Chongqing Normal University, Chongqing 401331, China
2The 13th Research Institute of CETC, Shijiazhuang, Hebei 0 50051, China
3State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, Jilin 130033, China