Plasma perspective on strong field multiphoton ionization
Open accessAbstract
During strong-field multiphoton ionization, a wave packet is formed each time the laser field passes its maximum value. Within the first laser period after ionization there is a significant probability that the electron will return to the vicinity of the ion with very high kinetic energy. High-harmonic generation, multiphoton two-electron ejection, and very high energy above-threshold-ionization electrons are all conssequences of this electron-ion interaction. One important parameter which determines the strength of these effects is the rate at which the wave packet spreads in the direction perpendicular to the laser electric field; another is the polarization of the laser. It will be essential for experimentalists to be aware of these crucial parameters in future experiments.
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The basic mechanism for HHG from single atoms is a coherent version of the Roentgen x-ray tube, through a 're-collision' process where the strong electric field of a laser pulls an electron away from an atom, then slams it back into that ionized atom.
“The basic mechanism for HHG from single atoms was outlined in numerical [119] and then analytic [120] forms as essentially a coherent version of the Roentgen x-ray tube, through a 're-collision' process where the strong electric field of a laser pulls an electron away from an atom, then slams it back into that ionized atom.”
From Roadmap of ultrafast x-ray atomic and molecular physics (2018) · cites this paper as [120]
Many characteristic features of HHG, in particular the high-energy cut-off in the XUV spectrum, can be understood by a three-step picture involving tunnel ionization, acceleration, recollision, and recombination.
“After a while, it was understood that many of the characteristic features of HHG, in particular the occurrence of a high-energy cut-off in the XUV spectrum, could be understood by a three-step picture, where (tunnel) ionization by an intense femtosecond laser sets an electron free, subsequent acceleration of the electron by the oscillatory laser electric field increases the kinetic energy of the”
From Roadmap of ultrafast x-ray atomic and molecular physics (2018) · cites this paper as [120]
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References 12 · Cited by 7,217
Research works printed but not linked: 12
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- Authors
- Corkum, P. B.
- Affiliations
- National Research Council Canada (CA)
- Corresponding author
- Corkum, P. B.
- ORCID
- Corkum, P. B.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 1993-09-27
- Volume
- 71
- Issue
- 13
- Pages
- 1994-1997
- ISSN
- 0031-9007 (ISSN-L)
- OpenAlex
- W2035188058
- Cited by
- 7,217
- References
- 12
- Citations by year
- 2026: 208 · 2025: 270 · 2024: 287 · 2023: 307 · 2022: 293 · 2021: 361 · 2020: 336 · 2019: 333 · 2018: 352 · 2017: 352 · 2016: 377 · 2015: 308 · 2014: 307 · 2013: 330 · 2012: 317
- FWCI
- 38.31
- Type
- journal article
- Language
- en
- Open access
- Locations
- Physical Review Letters (publishedVersion)
- PubMed (publishedVersion)
- NPARC (submittedVersion)
- 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 › Nuclear and High Energy Physics › Laser-Plasma Interactions and Diagnostics
- Keywords
- electron recollision, high harmonic generation, above-threshold ionization, laser polarization, wave packet spreading, electron-ion interaction
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