1. Institute of Atomic and Molecular Physics,
Jilin University, Changchun 130012, People’s Republic of China.
2. Jilin Provincial Key Laboratory of Applied Atomic and Molecular Spectroscopy,
Jilin University, Changchun 130012, People’s Republic of China.
3. Department of Physics,
National University of Defense Technology, Changsha 410073, People’s Republic of China.
4. Hunan Key Laboratory of Extreme Matter and Applications,
National University of Defense Technology, Changsha 410073, People’s Republic of China.