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  Harmonic generation from laser-driven vacuum

Di Piazza, A., Hatsagortsyan, K. Z., & Keitel, C. H. (2005). Harmonic generation from laser-driven vacuum. Physical Review D, 72(8): 085005. doi:10.1103/PhysRevD.72.085005.

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 Creators:
Di Piazza, Antonino1, Author           
Hatsagortsyan, Karen Zaven1, Author           
Keitel, Christoph Helmut1, Author           
Affiliations:
1Division Prof. Dr. Christoph H. Keitel, MPI for Nuclear Physics, Max Planck Society, ou_904546              

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 MPINP: Research group A. Di Piazza – Division C. H. Keitel
 MPINP: Research group K. Z. Hatsagortsyan – Division C. H. Keitel
 Abstract: 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.

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Language(s): eng - English
 Dates: 2005-10
 Publication Status: Issued
 Pages: -
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 Table of Contents: -
 Rev. Type: Peer
 Identifiers: eDoc: 256672
DOI: 10.1103/PhysRevD.72.085005
 Degree: -

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Title: Physical Review D
  Alternative Title : Phys. Rev. D
Source Genre: Journal
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Pages: - Volume / Issue: 72 (8) Sequence Number: 085005 Start / End Page: - Identifier: ISSN: 1550-7998