Observation of self-amplified spontaneous emission in the mid-infrared in a free-electron laser

R. Prazeres, J.M. Ortega, F. Glotin, D.A. Jaroszynski, O. Marcouille

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We have produced and analyzed self-amplified spontaneous emission emitted by a relativistic electron beam passing through an undulator for the first time in the mid-infrared. The spectral behavior of the line exhibits an unexpected growth at the start-up of the process.
Original languageEnglish
Pages (from-to)2124-2127
Number of pages3
JournalPhysical Review Letters
Issue number11
Publication statusPublished - 17 Mar 1997


  • self-amplified spontaneous emission
  • mid-infrared in a free-electron laser

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