1. National Center for Applied Mathematics, Chongqing Normal University, Chongqing, China
2. College of Physics and Electronic Engineering, Chongqing Normal University, Chongqing, China
3. State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, Jilin, China
4. Faculty of Sciences, Beijing University of Technology, Beijing, China