1. Department of Electrical and Computer Engineering
2. University of Nebraska-Lincoln
3. Lincoln
4. USA
5. Laser Micro/Nano-Fabrication Laboratory
6. School of Mechanical Engineering
7. Beijing Institute of Technology
8. Beijing 100081
9. P. R. China
10. Institut de Chimie de la Matière Condensée de Bordeaux – ICMCB-CNRS 87
11. F-33608 Pessac Cedex
12. France