1. Department of Applied Physics, Chongqing University of Technology, Chongqing 400054, China
2. Chongqing Key Laboratory of Time Grating Sensing & Advanced Testing Technology, Chongqing, 400054, China
3. Department of Electronic Information and Automation, Chongqing University of Technology, Chongqing 400054, China
4. International Centre for Materials Physics, Chinese Academy of Sciences, Shenyang 110016, China