1. Department of Physics
2. National Taiwan Normal University
3. Taipei 11677
4. Taiwan
5. Tohoku University
6. Sendai 980-8578
7. Japan
8. Shenyang National Laboratory for Materials Science
9. Institute of Metal Research
10. Chinese Academy of Sciences
11. Shenyang 110016
12. China
13. Near-field Nanophotonics Research Team
14. RIKEN
15. Wako
16. Institute of Atomic and Molecular Sciences
17. Academia Sinica
18. Taipei 10617
19. Physical Science and Engineering Division
20. Department of Applied Physics