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          Institute: MPI für Kernphysik     Collection: Theoretical Quantum Dynamics     Display Documents



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ID: 255413.0, MPI für Kernphysik / Theoretical Quantum Dynamics
Above-threshold ionization beyond the dipole approximation
Authors:Klaiber, Michael; Hatsagortsyan, Karen Zaven; Keitel, Christoph Helmut
Language:English
Date of Publication (YYYY-MM-DD):2005-03-17
Title of Journal:Physical Review A
Journal Abbrev.:Phys. Rev. A
Volume:71
Start Page:1
End Page:7
Sequence Number of Article:033408
Copyright:The American Physical Society
Review Status:not specified
Audience:Experts Only
Abstract / Description:A generalization of the analytical theory of above-threshold ionization in the single active electron approximation is developed while taking into account leading non-dipole and relativistic corrections in the starting Hamiltonian. Special interest is placed on the high energy part of the photoelectron spectrum which consists of a plateau and a characteristic cutoff. It is shown that the correction due to the magnetic component of the laser field gives rise to a decrease of the plateau height, an increase of the maximal cutoff energy, and a drift of the emitted electrons in propagation direction of the laser field. Furthermore, the influence of the relativistic mass shift may become non-neglible by reducing the cutoff energy significantly. Spin effects or the Zitterbewegung play a comparably minor role in the investigated parameter regime of suboptical frequencies and high but not ultra-high laser intensities.
External Publication Status:published
Document Type:Article
Communicated by:C.H. Keitel
Affiliations:MPI für Kernphysik/ Group C.H. Keitel/Relativistic Quantum Dynamics and High-Energy Processes (K. Hatsagortsyan)
Identifiers:DOI:10.1103/PhysRevA.71.033408
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