1. Center for the Physics of Materials and Department of Physics, McGill University, Montreal, Quebec H3A 2T8, Canada
2. State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, China
3. Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China
4. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China