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



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ID: 256672.0, MPI für Kernphysik / Theoretical Quantum Dynamics
Harmonic generation from laser-driven vacuum
Authors:Di Piazza, Antonino; Hatsagortsyan, Karen Zaven; Keitel, Christoph Helmut
Language:English
Date of Publication (YYYY-MM-DD):2005-10
Title of Journal:Physical Review D
Journal Abbrev.:Phys. Rev. D
Volume:72
Issue / Number:8
Start Page:1
End Page:23
Sequence Number of Article:085005
Copyright:©2005 The American Physical Society
Review Status:Peer-review
Audience:Not Specified
Abstract / Description:We investigate the feasibility that, in the field of a superstrong standing laser wave, high-order harmonics of the pumping laser are generated from vacuum. Analytical calculations employing adiabatic perturbation theory show that, for laser electric fields larger than Ecr=m2c3/[h-bar]e=1.3×1016 V/cm, high-order harmonics are generated. The harmonic spectrum shows a wide plateau followed by a cutoff. The cutoff starts approximately at photon energies [h-bar]omegaM~sqrt([h-bar]ecE[sub L]), with EL being the amplitude of the laser field. In the opposite limit EL<<Ecr, the emission of high harmonics is very unlikely. In this case, a feasibility analysis for the experimental observation of the photon-photon scattering process using x-ray free electron lasers shows that the requirements are much less restrictive than those required to observe electron-positron pair creation.
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:ISI:000232936700068 [ID No:1]
ISSN:1550-7998 [ID No:2]
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