1. School of Physics Harbin Institute of Technology Harbin 150001 China
2. Institute of Space Science and Technology Nanchang University Nanchang 330031 China
3. Key Lab of Advanced Transducers and Intelligent Control System (Ministry of Education and Shanxi Province) Taiyuan University of Technology Taiyuan 030024 China
4. College of Physics and Optoelectronics Taiyuan University of Technology Taiyuan University of Technology Taiyuan 030024 China