1. School of Electric Science and Engineering, School of Physics, College of Engineering and Applied Sciences, National Laboratory of Solid State Microstructures, Nanjing University, Nanjing, China
2. The MOE Key Laboratory of Weak Light Nonlinear Photonics, TEDA Applied Physics Institute and School of Physics, Nankai University, Tianjin, China
3. State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai, China
4. State Key Laboratory of Crystal Materials, School of Physics, Shandong University, Jinan, China
5. State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology, Sun Yat-sen University, Guangzhou, China