1. School of Instrument and Electronics, North University of China, Taiyuan, Shanxi 030051, People’s Republic of China
2. National Key Laboratory for Dynamic Measurement Technology, North University of China, Taiyuan 030051, People’s Republic of China
3. School of Semiconductor and Physics, North University of China, Taiyuan 030051, People’s Republic of China
4. School of Instrumentation Science and Optoelectronics Engineering, Beihang University, Beijing 100191, People’s Republic of China
5. Department of Applied Physics, Osaka University, 2-1 Yamada-Oka, Suita, Osaka 565-0871, Japan