1. Research Center of Laser Crystal, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
2. University of Chinese Academy of Sciences, Beijing 101408, China
3. School of Physics, Nankai University, Tianjin 300071, China
4. Institute of Novel Semiconductors, State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
5. School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China