1. State Key Laboratory for Artificial Microstructure and Mesoscopic Physics School of Physics Frontiers Science Center for Nano‐optoelectronics & Collaborative Innovation Center of Quantum Matter Peking University Beijing 100871 China
2. Department of Physics Center for Optoelectronics Engineering Research Yunnan University Kunming 650091 China
3. Center of Development and Research Yunnan Tin Group (Holding) Co. Ltd Kunming 650106 P. R. China
4. Department of Materials Science and Engineering University of Toronto Toronto Ontario M5G 3E4 Canada
5. Department of Electrical and Computer Engineering University of Toronto Toronto Ontario M5S 1A4 Canada
6. Shanghai Synchrotron Radiation Facility (SSRF) Zhangjiang Lab Shanghai Advanced Research Institute Chinese Academy of Sciences Shanghai 201204 China
7. Peking University Yangtze Delta Institute of Optoelectronics Nantong Jiangsu 226010 China
8. Collaborative Innovation Center of Extreme Optics Shanxi University Taiyuan Shanxi 030006 China