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Attosecond photoionization dynamics in the vicinity of the Cooper minima in argon

Alexandridi, C. ; Platzer, D. ; Barreau, L. ; Busto, D. LU orcid ; Zhong, S. LU ; Turconi, M. ; Neoričić, L. LU ; Laurell, H. LU ; Arnold, C. L. LU and Borot, A. , et al. (2021) In Physical Review Research 3(1).
Abstract

Using a spectrally resolved electron interferometry technique, we measure photoionization time delays between the 3s and 3p subshells of argon over a large 34-eV energy range covering the Cooper minima in both subshells. The observed strong variations of the 3s-3p delay difference, including a sign change, are well reproduced by theoretical calculations using the two-photon two-color random-phase approximation with exchange. Strong shake-up channels lead to photoelectrons spectrally overlapping with those emitted from the 3s subshell. These channels need to be included in our analysis to reproduce the experimental data. Our measurements provide a benchmark for multielectronic theoretical models aiming at an accurate description of... (More)

Using a spectrally resolved electron interferometry technique, we measure photoionization time delays between the 3s and 3p subshells of argon over a large 34-eV energy range covering the Cooper minima in both subshells. The observed strong variations of the 3s-3p delay difference, including a sign change, are well reproduced by theoretical calculations using the two-photon two-color random-phase approximation with exchange. Strong shake-up channels lead to photoelectrons spectrally overlapping with those emitted from the 3s subshell. These channels need to be included in our analysis to reproduce the experimental data. Our measurements provide a benchmark for multielectronic theoretical models aiming at an accurate description of interchannel correlation.

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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review Research
volume
3
issue
1
article number
L012012
publisher
American Physical Society
external identifiers
  • scopus:85111687905
ISSN
2643-1564
DOI
10.1103/PhysRevResearch.3.L012012
project
Attosecond chronoscopy of electron wave-packets probing entanglement and time-ordering of quantum processes
language
English
LU publication?
yes
id
b56f1ac1-6880-459d-b848-145bdd227667
date added to LUP
2022-02-22 16:26:50
date last changed
2024-02-17 21:05:21
@article{b56f1ac1-6880-459d-b848-145bdd227667,
  abstract     = {{<p>Using a spectrally resolved electron interferometry technique, we measure photoionization time delays between the 3s and 3p subshells of argon over a large 34-eV energy range covering the Cooper minima in both subshells. The observed strong variations of the 3s-3p delay difference, including a sign change, are well reproduced by theoretical calculations using the two-photon two-color random-phase approximation with exchange. Strong shake-up channels lead to photoelectrons spectrally overlapping with those emitted from the 3s subshell. These channels need to be included in our analysis to reproduce the experimental data. Our measurements provide a benchmark for multielectronic theoretical models aiming at an accurate description of interchannel correlation.</p>}},
  author       = {{Alexandridi, C. and Platzer, D. and Barreau, L. and Busto, D. and Zhong, S. and Turconi, M. and Neoričić, L. and Laurell, H. and Arnold, C. L. and Borot, A. and Hergott, J. F. and Tcherbakoff, O. and Lejman, M. and Gisselbrecht, M. and Lindroth, E. and L'Huillier, A. and Dahlström, J. M. and Salières, P.}},
  issn         = {{2643-1564}},
  language     = {{eng}},
  month        = {{02}},
  number       = {{1}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review Research}},
  title        = {{Attosecond photoionization dynamics in the vicinity of the Cooper minima in argon}},
  url          = {{http://dx.doi.org/10.1103/PhysRevResearch.3.L012012}},
  doi          = {{10.1103/PhysRevResearch.3.L012012}},
  volume       = {{3}},
  year         = {{2021}},
}