Photoemission-time-delay measurements and calculations close to the 3s-ionization-cross-section minimum in Ar
Guenot, Diego LU ; Klünder, Kathrin LU ; Arnold, Cord LU ; Kroon, David LU ; Dahlstrom, J. M. ; Miranda, Miguel LU ; Fordell, Thomas LU ; Gisselbrecht, Mathieu LU
; Johnsson, Per
LU
and Mauritsson, Johan
LU
, et al.
(2012)
In Physical Review A (Atomic, Molecular and Optical Physics)
85(5).
- Abstract
- We present experimental measurements and theoretical calculations of photoionization time delays from the 3s and 3p shells in Ar in the photon energy range of 32-42 eV. The experimental measurements are performed by interferometry using attosecond pulse trains and the infrared laser used for their generation. The theoretical approach includes intershell correlation effects between the 3s and 3p shells within the framework of the random-phase approximation with exchange. The connection between single-photon ionization and the two-color two-photon ionization process used in the measurement is established using the recently developed asymptotic approximation for the complex transition amplitudes of laser-assisted photoionization. We compare... (More)
- We present experimental measurements and theoretical calculations of photoionization time delays from the 3s and 3p shells in Ar in the photon energy range of 32-42 eV. The experimental measurements are performed by interferometry using attosecond pulse trains and the infrared laser used for their generation. The theoretical approach includes intershell correlation effects between the 3s and 3p shells within the framework of the random-phase approximation with exchange. The connection between single-photon ionization and the two-color two-photon ionization process used in the measurement is established using the recently developed asymptotic approximation for the complex transition amplitudes of laser-assisted photoionization. We compare and discuss the theoretical and experimental results, especially in the region where strong intershell correlations in the 3s -> kp channel lead to an induced "Cooper" minimum in the 3s ionization cross section. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/2906886
- author
- Guenot, Diego
LU
; Klünder, Kathrin
LU
; Arnold, Cord
LU
; Kroon, David
LU
; Dahlstrom, J. M.
; Miranda, Miguel
LU
; Fordell, Thomas
LU
; Gisselbrecht, Mathieu
LU
; Johnsson, Per
LU
and Mauritsson, Johan
LU
, et al. (More)
- Guenot, Diego
LU
; Klünder, Kathrin
LU
; Arnold, Cord
LU
; Kroon, David
LU
; Dahlstrom, J. M.
; Miranda, Miguel
LU
; Fordell, Thomas
LU
; Gisselbrecht, Mathieu
LU
; Johnsson, Per
LU
; Mauritsson, Johan
LU
; Lindroth, E.
; Maquet, A.
; Taieb, R.
; L'Huillier, Anne
LU
and Kheifets, A. S.
(Less)
- organization
- publishing date
- 2012
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review A (Atomic, Molecular and Optical Physics)
- volume
- 85
- issue
- 5
- publisher
- American Physical Society
- external identifiers
-
- wos:000304645900004
- scopus:84861820166
- ISSN
- 1050-2947
- DOI
- 10.1103/PhysRevA.85.053424
- language
- English
- LU publication?
- yes
- id
- e474d7b6-684c-4ae6-89ca-4aeb4b8e7628 (old id 2906886)
- date added to LUP
- 2016-04-01 10:01:45
- date last changed
- 2022-01-25 19:00:42
@article{e474d7b6-684c-4ae6-89ca-4aeb4b8e7628,
abstract = {{We present experimental measurements and theoretical calculations of photoionization time delays from the 3s and 3p shells in Ar in the photon energy range of 32-42 eV. The experimental measurements are performed by interferometry using attosecond pulse trains and the infrared laser used for their generation. The theoretical approach includes intershell correlation effects between the 3s and 3p shells within the framework of the random-phase approximation with exchange. The connection between single-photon ionization and the two-color two-photon ionization process used in the measurement is established using the recently developed asymptotic approximation for the complex transition amplitudes of laser-assisted photoionization. We compare and discuss the theoretical and experimental results, especially in the region where strong intershell correlations in the 3s -> kp channel lead to an induced "Cooper" minimum in the 3s ionization cross section.}},
author = {{Guenot, Diego and Klünder, Kathrin and Arnold, Cord and Kroon, David and Dahlstrom, J. M. and Miranda, Miguel and Fordell, Thomas and Gisselbrecht, Mathieu and Johnsson, Per and Mauritsson, Johan and Lindroth, E. and Maquet, A. and Taieb, R. and L'Huillier, Anne and Kheifets, A. S.}},
issn = {{1050-2947}},
language = {{eng}},
number = {{5}},
publisher = {{American Physical Society}},
series = {{Physical Review A (Atomic, Molecular and Optical Physics)}},
title = {{Photoemission-time-delay measurements and calculations close to the 3s-ionization-cross-section minimum in Ar}},
url = {{https://lup.lub.lu.se/search/files/1491706/2968577.pdf}},
doi = {{10.1103/PhysRevA.85.053424}},
volume = {{85}},
year = {{2012}},
}