1. State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, China
2. Institut für Chemie und Biochemie, Freie Universität Berlin, 14195 Berlin, Germany
3. Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China