Excitation and Ionization of Xenon Atoms in Strong UV Laser Fields

Authors

  • T. X. Yang Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China
  • Y. Lian Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China
  • R. Wang Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China
  • S. W. Zhang
  • L. H. He Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China
  • H. Lv Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China
  • H. F. Xu Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China

DOI:

https://doi.org/10.4208/jams.051817.062017a

Keywords:

Strong UV laser field, Rydberg state excitation, Multi-photon ionization.

Abstract

Neutral Rydberg state excitation in strong UV laser fields of Xe atoms has been studied and compared with direct ionization. The yields of both strong-field excitation and ionization have been measured as a function of UV laser intensity and ellipticity. The underlying physical mechanism has been discussed based on the experimental results, indicating that the Rydberg states are populated via multi-photon resonance excitation in strong 400 nm laser fields. Finally, a comparative study of Xe and $O_2$ with similar ionization potentials have been performed, showing the suppressed excitation of molecules in strong UV laser fields.

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Published

2017-08-01

Issue

Vol. 8 No. 1 (2017)

Section

Articles