High gain FEL regime, inhomogenous broadening effects: Comparison between numerical and analytical results

R. Georgii, G. Dattoli, L. Giannessi

Research output: Contribution to journalArticle


We present a comparison between numerical, analytical and "empirical" treatments of the evolution of a high gain FEL, including the effect of inhomogenous broadening. We show that the gain degradation induced by the beam quality is remarkably well reproduced by simple formulae. This favors a semianalytical treatment of the FEL dynamics including the pulse propagation and transverse mode effects.
Original languageEnglish
Pages (from-to)295 - 302
Number of pages8
JournalOptics Communications
Issue number4-6
Publication statusPublished - 15 Jun 1996
Externally publishedYes


All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

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