Dissociative frustrated multiple ionization of hydrogen chloride in intense femtosecond laser fields

Junyang Ma, Hui Li, Kang Lin, Qinying Ji, Wenbin Zhang, Hanxiao Li, Fenghao Sun, Junjie Qiang, Peifen Lu, Xiaochun Gong, and Jian Wu
Phys. Rev. A 99, 023414 – Published 13 February 2019

Abstract

The dissociative frustrated multiple ionization of hydrogen chloride (HCl) molecules in intense femtosecond laser fields is investigated by employing the coincidence measurement technique in cold target recoil ion momentum spectroscopy. Various dissociative frustrated multiple ionization channels caused by populating one or two electrons to highly excited Rydberg states can be clearly distinguished for HCl in linearly polarized intense laser fields. The excited charged fragmentations, depending on their occupied principle quantum numbers, can be either directly identified forming a “knee” structure in the kinetic energy release spectrum, or singly ionized by the weak electric field in the spectrometer, or by blackbody radiation after the conclusion of the laser pulse. The inherent feature of the potential energy curves of HCl plays an important role in the strong-field dissociative frustrated multiple ionization process.

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  • Received 17 October 2018

DOI:https://doi.org/10.1103/PhysRevA.99.023414

©2019 American Physical Society

Physics Subject Headings (PhySH)

Atomic, Molecular & Optical

Authors & Affiliations

Junyang Ma1, Hui Li1,*, Kang Lin1, Qinying Ji1, Wenbin Zhang1, Hanxiao Li1, Fenghao Sun1, Junjie Qiang1, Peifen Lu1, Xiaochun Gong1, and Jian Wu1,2

  • 1State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China
  • 2Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi 030006, China

  • *hli@lps.ecnu.edu.cn

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Vol. 99, Iss. 2 — February 2019

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