| Title | Femtosecond Resolving Photodissociation Dynamics of the SO2 Molecule |
| Authors | Lin, Kang Hu, Xiaoqing Pan, Shengzhe Chen, Fei Ji, Qinying Zhang, Wenbin Li, Hanxiao Qiang, Junjie Sun, Fenghao Gong, Xiaochun Li, Hui Lu, Peifen Wang, Jianguo Wu, Yong Wu, Jian |
| Affiliation | Inst Appl Phys & Computat Math, Beijing 100088, Peoples R China Peking Univ, Ctr Appl Phys & Technol, HEDPS, Beijing 100084, Peoples R China East China Normal Univ, State Key Lab Precis Spect, Shanghai 200062, Peoples R China Shanxi Univ, Collaborat Innovat Ctr Extreme Opt, Taiyuan 030006, Shanxi, Peoples R China |
| Keywords | COULOMB EXPLOSION MOMENTUM SPECTROSCOPY RECOIL-ION LASER DISSOCIATION BOND |
| Issue Date | 16-Apr-2020 |
| Publisher | JOURNAL OF PHYSICAL CHEMISTRY LETTERS |
| Abstract | We experimentally investigate the ultrafast photodissociation dynamics of the SO2 molecule induced by intense ultrashort laser pulses in a pump-probe scheme. Different three-body fragmentation pathways are discriminated using the time-dependent kinetic energy release spectrum with femtosecond time resolution. A nontrivial three-body fragmentation pathway, denoted as the bonding pathway, is unraveled, in which an intermediate fast rotating O-2 molecule is formed before complete fragmentation. The ultrafast chemical bond rearrangement after electron release is tracked in real time. The bonding pathway generally exists in the three-body fragmentation processes induced by strong laser fields of different wavelengths, which is observed in infrared, ultraviolet, and mixed two-color cases. Our findings are significant for understanding the photon-induced ultrafast processes of the SO2 molecule in atmospheric chemistry. |
| URI | http://hdl.handle.net/20.500.11897/588045 |
| ISSN | 1948-7185 |
| DOI | 10.1021/acs.jpclett.0c00599 |
| Indexed | SCI(E) Scopus EI |
| Appears in Collections: | 工学院 |
