1. Hunan Key Laboratory for Super-microstructure and Ultrafast Process
2. College of Physics and Electronics
3. Central South University
4. Changsha
5. P. R. China
6. Department of Physics and Astronomy
7. University of Rochester
8. Rochester
9. USA
10. Department of Mechanical and Materials Engineering and Nebraska Center for Materials and Nanoscience
11. University of Nebraska-Lincoln
12. Lincoln