1. Graduate Institute of Electro-Optical Engineering
2. Department of Electronic and Computer Engineering
3. National Taiwan University of Science and Technology
4. Taipei 106
5. Republic of China
6. Department of Electrical and Computer Engineering
7. Boston University
8. Boston
9. United States
10. Department of Engineering and System Science
11. National Tsing Hua University
12. Hsinchu 300
13. Department of Physics
14. Tamkang University
15. Tamsui 251