Tracking the nuclear movement of the carbonyl sulfide cation after strong-field ionization by time-resolved Coulomb-explosion imaging

Xinning Zhao, Ting Xu, Xitao Yu, Dianxiang Ren, Xinyu Zhang, Xiaokai Li, Pan Ma, Chuncheng Wang, Dongdong Zhang, Qinxin Wang, Xiaoqing Hu, Sizuo Luo, Yong Wu, Jianguo Wang, and Dajun Ding
Phys. Rev. A 103, 053103 – Published 5 May 2021

Abstract

We studied the ultrafast nuclear dynamics during the dissociation of OCS+ molecules using a strong IR-laser pump and probe technique in combination with the coincidence measurement. The nuclear movement is tracked by analyzing the time-dependent kinetic energy release (KER) spectra. The involved dissociation states and pathways are assigned with the help of the semiclassical Landau-Zener surface hopping calculations. The real-time bond-breaking dynamics of the 32A coupling to other states are observed for the two-body dissociation channel and the three-body dissociation channel but with high KER. The three-body dissociation channel with low KER is assigned to the direct breaking process from the 32A state. The overall agreements between the experimental and theoretical results demonstrate that the time-resolved Coulomb-explosion imaging is a valuable way to monitor the bond breaking and structural evolution of complex molecules.

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  • Received 15 March 2021
  • Accepted 22 April 2021
  • Corrected 11 May 2021

DOI:https://doi.org/10.1103/PhysRevA.103.053103

©2021 American Physical Society

Physics Subject Headings (PhySH)

Atomic, Molecular & Optical

Corrections

11 May 2021

Correction: The previously published Figure 3(d) was processed improperly during the production cycle and is now rendered correctly.

Authors & Affiliations

Xinning Zhao1, Ting Xu2, Xitao Yu1, Dianxiang Ren1, Xinyu Zhang1, Xiaokai Li1, Pan Ma1, Chuncheng Wang1, Dongdong Zhang1, Qinxin Wang3, Xiaoqing Hu2,*, Sizuo Luo1,†, Yong Wu2, Jianguo Wang2, and Dajun Ding1,‡

  • 1Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China
  • 2Institute of Applied Physics and Computational Mathematics, Beijing 100088, China
  • 3College of Electrical Engineering, Jilin Engineering Normal University, Changchun 130012, China

  • *hu_xiaoqing@iapcm.ac.cn
  • luosz@jlu.edu.cn
  • dajund@jlu.edu.cn

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Issue

Vol. 103, Iss. 5 — May 2021

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