“Nonrelativistic” ionization of theL-shell states in argon by a “relativistic”laser field
- 20 March 2001
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 63 (4), 042712
- https://doi.org/10.1103/physreva.63.042712
Abstract
The field ionization cross sections for the L-shell states in argon are presented as measured with pulsed-laser radiation at an intensity of up to For ultrahigh intensities, the photoelectron continuum dynamics will be relativistic. However, the measured charge-state yields for to compare favorably to numerical solutions of the nonrelativistic Schrödinger equation and a widely used Ammosov-Delone-Krainov/WKB tunneling ionization model. The results are interpreted within a two-step, strong-field ionization model, where the initial tunneling ionization process is dominated by nonrelativistic effects while the photoelectron continuum dynamics are strongly relativistic.
Keywords
This publication has 22 references indexed in Scilit:
- High-Intensity Laser-Atom PhysicsPublished by Elsevier BV ,2000
- A 50-EW/cm^2 Ti:sapphire laser system for studying relativistic light-matter interactionsOptics Express, 1999
- Numerical approach to solve the time-dependent Dirac equationPhysical Review A, 1999
- Signature of Relativistic Effects in Atom-Laser Interactions at Ultrahigh IntensitiesPhysical Review Letters, 1998
- Transmission through Highly Overdense Plasma Slabs with a Subpicosecond Relativistic Laser PulsePhysical Review Letters, 1998
- Electron Acceleration by a Laser Wakefield in a Relativistically Self-Guided ChannelPhysical Review Letters, 1997
- Measurement of the Initial Condition of Electrons Ionized by a Linearly Polarized, High-Intensity LaserPhysical Review Letters, 1997
- Observation of the Transition from Thomson to Compton Scattering in Multiphoton Interactions with Low-Energy ElectronsPhysical Review Letters, 1995
- Dynamic stabilization of hydrogen in an intense, high-frequency, pulsed laser fieldPhysical Review Letters, 1991
- Stabilization of atoms in superintense laser fields: Is it real?Physical Review Letters, 1991