Evolution of transverse modes in a high-gain free-electron laser

S.G. Biedron, H.P. Freund, S.V. Milton, G. Dattoli, A. Renieri, P.L. Ottaviani

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5 Citations (Scopus)

Abstract

At the point of saturation in a high-gain free-electron laser (FEL) the light is fully transversely coherent. The number and evolution of the transverse modes is important for the effective tune-up and subsequent operation of FELs based on the photon beam characterization and in designing multi-module devices that rely on relatively stable saturation distances in each module. In the latter, this is particularly critical since each section will seed another module. Overall, in a single- or multi-module device, experimental users will desire stability in power and in photon beam quality. Using a numerical simulation code, the evolution of the transverse modes in the high-gain free-electron laser (FEL) is examined and is discussed. In addition, the transverse modes in the first few higher nonlinear harmonics are investigated. © 2004 Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)443 - 447
Number of pages5
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume528
Issue number1-2
DOIs
Publication statusPublished - 1 Aug 2004
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Nuclear and High Energy Physics

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