1. Siyuan Laboratory
2. Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Materials
3. Department of Physics
4. Jinan University
5. Guangzhou 510630
6. Department of Materials Science and Engineering
7. Guangzhou 510632
8. People's Republic of China
9. Institute of Applied Physics and Materials Engineering
10. Department of Physics and Chemistry
11. Faculty of Science and Technology
12. University of Macau
13. Macau