1. School of Physics and Electronic Engineering
2. Mudanjiang Normal University
3. Mudanjiang 157011
4. China
5. Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education
6. Jilin Normal University
7. Changchun 130103
8. State Key Laboratory of Luminescence and Applications
9. Changchun Institute of Optics
10. Fine Mechanics and Physics
11. Chinese Academy of Sciences
12. Changchun 130033