1. College of Physics and Optoelectronics, Faculty of Science, Beijing University of Technology, Beijing 100124, China
2. College of Science, Xi’an University of Architecture and Technology, Xi’an 710055, China
3. Key Laboratory of Opto-Electronics Technology, Ministry of Education, Faculty of Information Technology, Beijing University of Technology, Beijing 100124, China
4. The College of Chemistry & Materials Engineering, WenZhou University, Wenzhou 325000, China
5. The School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China