Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

Parity-mixing interference in laser-assisted photoionization

Ouahioune, N. LU orcid ; Hoff, D. LU ; Maroju, P. K. LU ; Arnold, C. L. LU ; Busto, D. LU orcid ; Lhuillier, A LU orcid ; Gisselbrecht, M. LU orcid and Carlström, S. LU (2026) In New Journal of Physics 28(7).
Abstract

Photoionization of atoms by high-order harmonics in the presence of a laser may lead to quantum interference from which information about the photoionization dynamics or the light fields can be extracted. Traditionally, this interference arises from two-photon transitions involving the absorption of consecutive harmonics combined with the absorption and stimulated emission of a laser photon. In this process, parity is conserved. Here, we investigate interference between one- and two-photon transitions in helium using high-order harmonics generated by a few-cycle laser and three-dimensional electron detection. In this case, parity is not conserved. We identify four parity-mixing interference pathways, involving two different harmonic... (More)

Photoionization of atoms by high-order harmonics in the presence of a laser may lead to quantum interference from which information about the photoionization dynamics or the light fields can be extracted. Traditionally, this interference arises from two-photon transitions involving the absorption of consecutive harmonics combined with the absorption and stimulated emission of a laser photon. In this process, parity is conserved. Here, we investigate interference between one- and two-photon transitions in helium using high-order harmonics generated by a few-cycle laser and three-dimensional electron detection. In this case, parity is not conserved. We identify four parity-mixing interference pathways, involving two different harmonic fields or a single harmonic, together with absorption or emission of a probe photon.

(Less)
Please use this url to cite or link to this publication:
author
; ; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
atomic physics, attosecond science, laser-assisted photoionization, quantum interference
in
New Journal of Physics
volume
28
issue
7
article number
073202
publisher
IOP Publishing
external identifiers
  • scopus:105045951460
ISSN
1367-2630
DOI
10.1088/1367-2630/ae856f
project
Controlling the photoelectric effect in real-time
language
English
LU publication?
yes
additional info
Publisher Copyright: © 2026 The Author(s). Published by IOP Publishing Ltd on behalf of the Institute of Physics and Deutsche Physikalische Gesellschaft. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
id
ac06a486-9473-489c-9900-5af339f16be7
date added to LUP
2026-08-16 16:03:48
date last changed
2026-09-14 09:28:58
@article{ac06a486-9473-489c-9900-5af339f16be7,
  abstract     = {{<p>Photoionization of atoms by high-order harmonics in the presence of a laser may lead to quantum interference from which information about the photoionization dynamics or the light fields can be extracted. Traditionally, this interference arises from two-photon transitions involving the absorption of consecutive harmonics combined with the absorption and stimulated emission of a laser photon. In this process, parity is conserved. Here, we investigate interference between one- and two-photon transitions in helium using high-order harmonics generated by a few-cycle laser and three-dimensional electron detection. In this case, parity is not conserved. We identify four parity-mixing interference pathways, involving two different harmonic fields or a single harmonic, together with absorption or emission of a probe photon.</p>}},
  author       = {{Ouahioune, N. and Hoff, D. and Maroju, P. K. and Arnold, C. L. and Busto, D. and Lhuillier, A and Gisselbrecht, M. and Carlström, S.}},
  issn         = {{1367-2630}},
  keywords     = {{atomic physics; attosecond science; laser-assisted photoionization; quantum interference}},
  language     = {{eng}},
  number       = {{7}},
  publisher    = {{IOP Publishing}},
  series       = {{New Journal of Physics}},
  title        = {{Parity-mixing interference in laser-assisted photoionization}},
  url          = {{http://dx.doi.org/10.1088/1367-2630/ae856f}},
  doi          = {{10.1088/1367-2630/ae856f}},
  volume       = {{28}},
  year         = {{2026}},
}