Photoemission-time-delay measurements and calculations close to the 3s-ionization-cross-section minimum in Ar
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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 $3s\ensuremath{\rightarrow}kp$ channel lead to an induced ``Cooper'' minimum in the 3s ionization cross section.
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Photoionization can be studied by pump/probe schemes in combination with photoelectron spectroscopy.
“Photoionization can be studied by pump/probe schemes in combination with photoelectron spectroscopy [185][186][187][188][189][190][191][192][193].”
From Roadmap of ultrafast x-ray atomic and molecular physics (2018) · cites this paper as [187]
Pump/probe schemes often use either single attosecond pulses with a rather intense infrared probe pulse or an attosecond pulse train with a weak infrared pulse.
“Pump/probe schemes often use either single attosecond pulses together with a rather intense infrared probe pulse [185,186,191] or an attosecond pulse train together with a weak infrared pulse [187-190, 192, 193].”
From Roadmap of ultrafast x-ray atomic and molecular physics (2018) · cites this paper as [187]
A series of recent experimental reports showed that we now have the ability to characterize an escaping photoelectron wavepacket and its interaction with the ionic core.
“A series of recent experimental reports [185][186][187][188][189][190][191][192][193] showed that we now have the ability to characterize an escaping photoelectron wavepacket and its interaction with the ionic core.”
From Roadmap of ultrafast x-ray atomic and molecular physics (2018) · cites this paper as [187]
This triggered theoretical studies of this interaction and of the effect of probing the system.
“This also triggered theoretical studies of this interaction as well as of the effect of probing the system [187,190,194].”
From Roadmap of ultrafast x-ray atomic and molecular physics (2018) · cites this paper as [187]
Figure 22 shows the difference in time delays corresponding to ionization in the 3s and 3p ionization of argon.
“Figure 22 shows the difference in the time delays corresponding to ionization in the 3s and 3p ionization of argon [187].”
From Roadmap of ultrafast x-ray atomic and molecular physics (2018) · cites this paper as [187]
Measured difference in photoionization time delays from the 3s and 3p shells in Ar.
“Measured difference in photoionization time delays from the 3s and 3p shells in Ar (solid dots).”
From Roadmap of ultrafast x-ray atomic and molecular physics (2018) · cites this paper as [187]
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References 31 · Cited by 139
Research works printed but not linked: 1
- J. M. Dahlstrom, D. Guénot, K. Klünder, M. Gisselbrecht, J. Mauritsson, A. L'Huillier, A. Maquet, and R. Taïeb, Chem. Phys. (in press, 2012).
- Authors
- Guénot, D., Klünder, K., Arnold, C. L., Kroon, D., Dahlström, J. M., Miranda, M., Fordell, T., Gisselbrecht, M., Johnsson, P., Mauritsson, J., Lindroth, E., Maquet, A., Taïeb, R., L’Huillier, A., & Kheifets, A. S.
- Affiliations
- Lund University (SE)
- Stockholm University (SE)
- Laboratoire de Chimie Physique - Matière et Rayonnement (FR)
- Australian National University (AU)
- ORCID
- Venue
- Physical Review A
- Publisher
- American Physical Society (APS)
- Published
- 2012-05-31
- Volume
- 85
- Issue
- 5
- ISSN
- 0556-2791 (ISSN-L)
- 1050-2947
- 1094-1622
- OpenAlex
- W2118230776
- Cited by
- 139
- References
- 31
- Citations by year
- 2026: 6 · 2025: 7 · 2024: 9 · 2023: 5 · 2022: 6 · 2021: 11 · 2020: 12 · 2019: 10 · 2018: 10 · 2017: 8 · 2016: 9 · 2015: 14 · 2014: 15 · 2013: 12 · 2012: 5
- FWCI
- 7.60
- Type
- journal article
- Language
- en
- Open access
- green
- lup.lub.lu.se
- Licence
- Locations
- Physical Review A (publishedVersion)
- Lund University Publications (Lund University) (submittedVersion, other-oa)
- ANU Open Research (Australian National University) (submittedVersion)
- Funders
- Laserlab-Europe
- Agence Nationale de la Recherche (ANR-09-BLAN-0031)
- Stiftelsen för Strategisk Forskning
- Knut och Alice Wallenbergs Stiftelse
- Vetenskapsrådet
- Topics
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Laser-Matter Interactions and Applications
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Atomic and Molecular Physics
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Advanced Chemical Physics Studies
- Keywords
- photoionization time delay, argon, Cooper minimum, attosecond interferometry, asymptotic approximation, random phase approximation with exchange, single-photon ionization
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