1. Key Laboratory for Photonic and Electronic Bandgap Materials
2. Ministry of Education
3. School of Physics and Electronic Engineering
4. Harbin Normal University
5. Harbin 150025
6. Department of Chemistry and Chemical Biology
7. Cornell University
8. Ithaca
9. USA
10. Center for Engineering Training and Basic Experimentation
11. Heilongjiang University of Science and Technology
12. Harbin 150022
13. P. R. China