1. Department of Physics, Taiyuan Normal University, Jinzhong, 030619, China
2. Institute of Computational and Applied Physics, Taiyuan Normal University, Jinzhong, 030619, China
3. Institute of Medical Physics, Hunan University of Medicine, Huaihua, Hunan 418000, China
4. State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an 710119, China
5. Department of Engineer Science, University of Oxford, Parks Road, Oxford OX1 3PJ, U.K.