Physical Review Letters · 1984 · 485 citations · 5 references
Natural SciencesPhysicsAtomic PhysicsOpticsQuantum MechanicsAtomic TransitionsLaser PhysicsLaser SpectroscopyLaser-plasma InteractionsScattering TheoryAtom-field InteractionsElastic ScatteringElastic Wave ScatteringExtreme Ultraviolet SpectroscopyMultiphoton AbsorptionMultiphoton ExcitationMultiphoton TransitionsStrong-field Laser-matter Interaction
The paper develops a nonperturbative theory for free‑free transitions of electrons colliding with atoms in intense high‑frequency laser fields. The theory assumes electron energies below photon energies and derives simple expressions for multiphoton absorption amplitudes. It predicts large deviations from the laser‑free case in elastic scattering and is applicable at current laser frequencies, extending to the extreme ultraviolet.
A nonperturbative theory is developed for free-free transitions of electrons colliding with atoms in intense high-frequency laser fields. The energy of the incoming electrons is assumed to be smaller than that of the photons. Rather simple expressions are derived for the multiphoton absorption amplitudes. Large deviations from the laser-free case are shown to appear in elastic scattering. The theory applies at already existing laser frequencies but extends beyond, to the extreme ultraviolet range.
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Anomalous Collision-Free Multiple Ionization of Atoms with Intense Picosecond Ultraviolet Radiation
T. S. Luk, H. Pummer, K. Boyer et al. · Physical Review Letters · 1983 · 153 citations
Natural Sciences, Chemistry, Physics +16