Polarizability, Stark shifts, and field ionization of highly charged ions in ultraintense lasers

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Author(s)Jones, Evan C.
Author(s)Andreula, Zachery P.
Author(s)Walker, Barry C.
Date Accessioned2023-05-02T15:18:37Z
Date Available2023-05-02T15:18:37Z
Publication Date2023-03-06
DescriptionThis article was originally published in Physical Review A. The version of record is available at: https://doi.org/10.1103/PhysRevA.107.033102
AbstractWe have calculated the polarization and Stark-shifted binding energy for ultraintense lasers interacting with highly charged ions across the periodic table from beryllium to uranium at intensities up to 1022Wcm−2. The induced dipole and Stark shifts for the bound states can be as large as 0.1ea0 and 50Eh. Calculations of tunneling show the impacts of polarization and Stark shifts on the ionization rate are significant but counteracting. The work resolves a long-standing question of how field-free derivations of the tunneling response for highly charged ions have been quantitatively successful in relativistic, ultrahigh-intensity experiments. Using a scaling relationship, the results can be generalized to give the induced electric dipole for any species across an intensity range from 1015 to 1022Wcm−2.
SponsorThis material is based upon work supported by the National Science Foundation under Grants No. 2133728 and No. 2110462.
CitationJones, Evan C., Zachery P. Andreula, and Barry C. Walker. “Polarizability, Stark Shifts, and Field Ionization of Highly Charged Ions in Ultraintense Lasers.” Phys. Rev. A 107, no. 3 (March 2023): 033102. https://doi.org/10.1103/PhysRevA.107.033102.
ISSN2469-9934
URLhttps://udspace.udel.edu/handle/19716/32702
Languageen_US
PublisherPhysical Review A
Keywordsatomic & molecular processes in external fields
Keywordsmultiphoton or tunneling ionization & excitation
Keywordsstark effect
Keywordsstrong electromagnetic field effects
Keywordsultrafast phenomena
TitlePolarizability, Stark shifts, and field ionization of highly charged ions in ultraintense lasers
TypeArticle
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