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Measurements of nonlinear harmonic radiation and harmonic microbunching in a visible SASE FEL

  • A. Tremaine
  • , X. J. Wang
  • , M. Babzien
  • , I. Ben-Zvi
  • , M. Cornacchia
  • , R. Malone
  • , A. Murokh
  • , H. D. Nuhn
  • , C. Pellegrini
  • , S. Reiche
  • , J. Rosenzweig
  • , J. Skaritka
  • , V. Yakimenko
  • Lawrence Livermore National Laboratory
  • Brookhaven National Laboratory
  • SLAC National Accelerator Laboratory
  • University of California at Los Angeles

Research output: Contribution to journalConference articlepeer-review

9 Scopus citations

Abstract

The experimental characterization of nonlinear harmonic generation (NHG) and electron beam microbunching at saturation from a visible SASE FEL are presented in this report. The gain lengths, spectra and energies of NHG were experimentally measured up to the third harmonic, and agree with theoretical predictions. Electron beam microbunching in both the fundamental and the second harmonic as the function of the SASE output were experimentally observed over the full range of SASE gain. The bunching factors for both the fundamental (b1) and second harmonic (b2) were experimentally characterized at saturation. The microbunching data provides another test of SASE saturation as well as correlating the NHG and electron beam microbunching modes to the fundamental SASE.

Original languageEnglish
Pages (from-to)445-449
Number of pages5
JournalNuclear Inst. and Methods in Physics Research, A
Volume507
Issue number1-2
DOIs
StatePublished - Jul 11 2003
EventProceedings of the 24th International Free Electron Laser Conference - Argonne, IL, United States
Duration: Sep 9 2002Sep 13 2002

Keywords

  • Harmonic
  • Microbunching
  • Nonlinear
  • Saturation

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