1. Department of Physics
2. National Taiwan Normal University
3. Taipei 11677
4. Taiwan
5. Research Center for Applied Sciences
6. Academia Sinica
7. Taipei
8. Physical Sciences and Engineering Division
9. King Abdullah University of Science and Technology (KAUST)
10. Thuwal
11. Kingdom of Saudi Arabia
12. National Nano Device Laboratories, National Applied Research Laboratories
13. Hsinchu 30078