1. School of Electronics and Information Engineering, Nantong Vocational University, Nantong, China
2. School of Electronic Information and Artificial Intelligence, Shaanxi University of Science and Technology, Xi'an, China
3. Key Laboratory for Physical Electronics and Devices of the Ministry of Education, Xi'an Jiaotong University, Xi'an, China
4. State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an, China