1. School of Science, Beijing University of Posts and Telecommunications (BUPT), Beijing 100876, P. R. China
2. Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R China
3. University of Chinese Academy of Sciences, Beijing 100049, P. R China
4. School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, P. R. China
5. STU & SIOM Joint Laboratory for Superintense Lasers and the Applications, Shanghai 201210, P. R. China
6. Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie Pvt., Ottawa, Ontario K1N 6N5, Canada