Dr Robert Potvliege r.m.potvliege@durham.ac.uk
Associate Professor
High-order above-threshold ionization of argon: plateau resonances and the Floquet quasienergy spectrum
Potvliege, R.M.; Vucic, S.
Authors
S. Vucic
Abstract
The Floquet quasienergy spectrum of argon in a strong laser field of 800 nm wavelength is calculated for intensities up to 7×1013 W cm–2, and beyond for some states, using a discrete complex basis set. Many of the dressed excited states of interest shift nonponderomotively in complicated ways but keep an ionization width narrow enough to produce sharp enhancements of above-threshold ionization (ATI) through Stark-shift-induced resonances. The quasienergy map is compared to high-resolution ATI spectra for 120 fs Ti:sapphire pulses [Nandor et al., Phys. Rev. A 60, R1771 (1999)]. The plateau enhancements happen at intensities where the dressed ground state is in resonance or in the wing of resonances with dressed excited states. The resonant dressed states are identified. In many cases, the same state is responsible for an enhancement of ATI in the low as well as the high orders. No evidence is found for enhancements that are not concomitant with any curve crossing and could thereby be interpreted as channel-closing enhancement.
Citation
Potvliege, R., & Vucic, S. (2006). High-order above-threshold ionization of argon: plateau resonances and the Floquet quasienergy spectrum. Physical Review A, 74(2), https://doi.org/10.1103/physreva.74.023412
Journal Article Type | Article |
---|---|
Publication Date | 2006-08 |
Deposit Date | Feb 12, 2007 |
Publicly Available Date | Sep 20, 2010 |
Journal | Physical Review A |
Print ISSN | 1050-2947 |
Electronic ISSN | 1094-1622 |
Publisher | American Physical Society |
Peer Reviewed | Peer Reviewed |
Volume | 74 |
Issue | 2 |
DOI | https://doi.org/10.1103/physreva.74.023412 |
Keywords | MULTIPHOTON PROCESSES; HARMONIC-GENERATION; ATOMIC-HYDROGEN; LASERFIELD; 248 NM; ENHANCEMENT; STATES; TIME; DYNAMICS; HELIUM |
Files
Published Journal Article
(513 Kb)
PDF
Copyright Statement
© 2006 by The American Physical Society. All rights reserved.
You might also like
Trap induced broadening in a potential hydrogen lattice clock
(2024)
Journal Article
Deuterium spectroscopy for enhanced bounds on physics beyond the standard model
(2023)
Journal Article
ARC 3.0: An expanded Python toolbox for atomic physics calculations
(2021)
Journal Article
Probing new physics using Rydberg states of atomic hydrogen
(2020)
Journal Article
Downloadable Citations
About Durham Research Online (DRO)
Administrator e-mail: dro.admin@durham.ac.uk
This application uses the following open-source libraries:
SheetJS Community Edition
Apache License Version 2.0 (http://www.apache.org/licenses/)
PDF.js
Apache License Version 2.0 (http://www.apache.org/licenses/)
Font Awesome
SIL OFL 1.1 (http://scripts.sil.org/OFL)
MIT License (http://opensource.org/licenses/mit-license.html)
CC BY 3.0 ( http://creativecommons.org/licenses/by/3.0/)
Powered by Worktribe © 2024
Advanced Search