TY - JOUR
T1 - Femtosecond Resolving Photodissociation Dynamics of the SO2 Molecule
AU - Lin, Kang
AU - Hu, Xiaoqing
AU - Pan, Shengzhe
AU - Chen, Fei
AU - Ji, Qinying
AU - Zhang, Wenbin
AU - Li, Hanxiao
AU - Qiang, Junjie
AU - Sun, Fenghao
AU - Gong, Xiaochun
AU - Li, Hui
AU - Lu, Peifen
AU - Wang, Jianguo
AU - Wu, Yong
AU - Wu, Jian
N1 - Publisher Copyright:
© 2020 American Chemical Society.
PY - 2020/4/16
Y1 - 2020/4/16
N2 - 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 O2 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.
AB - 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 O2 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.
UR - https://www.scopus.com/pages/publications/85083543902
U2 - 10.1021/acs.jpclett.0c00599
DO - 10.1021/acs.jpclett.0c00599
M3 - 文章
C2 - 32233496
AN - SCOPUS:85083543902
SN - 1948-7185
VL - 11
SP - 3129
EP - 3135
JO - Journal of Physical Chemistry Letters
JF - Journal of Physical Chemistry Letters
IS - 8
ER -