1. State Key Laboratory on Tunable laser Technology, Ministry of Industry and Information Technology Key Lab of Micro-Nano Optoelectronic Information System, School of Science, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China
2. Department of Engineering and System Science, National Tsing Hua University, Hsinchu 300044, Taiwan
3. Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu 300044, Taiwan
4. College of Semiconductor Research, National Tsing Hua University, Hsinchu 300044, Taiwan
5. Guangdong Provincial Key Laboratory of Semiconductor Optoelectronic Materials and Intelligent Photonic Systems, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China