1. Department of Optics and Photonics, National Central University, Taoyuan 32001, Taiwan
2. Molecular Science and Technology Program, Taiwan International Graduate Program, Institute of Atomic and Molecular Science, Academia Sinica, Taipei 10617, Taiwan
3. Department of Physics, National Central University, Taoyuan 32001, Taiwan
4. Taiwan Semiconductor Research Institute, National Applied Research Laboratories, Hsinchu 30078, Taiwan
5. Department of Chemical and Materials Engineering, National Central University, Taoyuan 32001, Taiwan