1. Coherent Light and Atomic and Molecular Spectroscopy Laboratory, College of Physics, Jilin University, Changchun 130012, China
2. Key Laboratory of Physics and Technology for Advanced Batteries, College of Physics, Jilin University, Changchun 130012, China
3. School of Chemical Sciences, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA