1. St. Petersburg State University, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia
2. State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser spectroscopy, College of Physics and Electronics, Shanxi University, Taiyuan 030006, China
3. Institute of Nuclear and New Energy Technology, Collaborative Innovation Center of Advanced Nuclear Energy Technology, Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education, Tsinghua University, Beijing 100084, China
4. Physics Department, Temple University, Philadelphia, Pennsylvania 19122-6082, USA
5. Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi 030006, People’s Republic of China