1. Graduate Institute of Photonics and Optoelectronics, National Taiwan University, Taipei 10617, Taiwan
2. Institute of Lighting and Energy Photonics, College of Photonics, National Yang Ming Chiao Tung University, Tainan City 71150, Taiwan
3. Graduate Program of College of Photonics, College of Photonics, National Yang Ming Chiao Tung University, Tainan City 71150, Taiwan
4. Department of Photonics, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
5. Semiconductor Research Center, Hon-Hai Research Institute, Taipei 114699, Taiwan
6. Research Center for Applied Sciences, Academia Sinica, Taipei 115201, Taiwan
7. Department of Electrical Engineering, National Taiwan University, Taipei 10617, Taiwan