1. State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871, China
2. Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi 030006, China
3. Frontiers Science Center for Nano-optoelectronics, Peking University and the Collaborative Innovation Center of Quantum Matter, Beijing 100871, China
4. Yangtze Delta Institute of Optoelectronics, Peking University, Nantong 226010, Jiangsu, China