1. Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education
2. School of Physics and Technology
3. Wuhan University
4. Wuhan
5. P. R. China
6. School of Optical and Electronic Information
7. Huazhong University of Science and Technology
8. Key Laboratory of Multifunctional Nanomaterials and Smart Systems
9. Suzhou Institute of Nano-Tech and Nano-Bionics
10. Chinese Academy of Sciences
11. Suzhou
12. Department of Physics
13. Hubei University
14. Wuhan 430062
15. The State Key Laboratory of Refractories and Metallurgy
16. School of Materials and Metallurgy
17. Wuhan University of Science and Technology