The quantum free electron laser

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The quantum regime of the free-electron laser (FEL) interaction, where the recoil associated with photon emission plays a significant role, is discussed. The role of quantum effects and their relation to electron beam coherence are considered. An outline derivation of a 1D quantum high-gain FEL model and some of its predictions for the behaviour of a quantum FEL in the linear and non-linear regimes are presented. The effect of slippage and, consequently, the quantum regime of self-amplified spontaneous emission are discussed. Suggestions on how to realise a quantum FEL are presented and some recent related work is summarized.
Original languageEnglish
Pages (from-to)467
JournalCERN Yellow Reports: School Proceedings
Issue number2018
Publication statusPublished - 11 Apr 2018


  • free-electron laser
  • quantum effects
  • recoil
  • FEL
  • high-energy photons

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