Strong-signal theory of a free-electron laser

F. A. Hopf, P. Meystre, M. O. Scully, W. H. Louisell

Research output: Contribution to journalArticlepeer-review

116 Scopus citations


The strong-signal regime of a free-electron laser is analyzed in terms of a set of "generalized Bloch equations." We show that for current free-electron-laser configurations the saturation will be reached for a field on the order of 107 V/m, with an efficiency at saturation of 5×10-3. However, a strong reshaping of the electron distribution may alter the efficiency of free-electron lasers in cases where the electron beam is recycled from one shot to the next.

Original languageEnglish (US)
Pages (from-to)1342-1345
Number of pages4
JournalPhysical review letters
Issue number20
StatePublished - 1976

ASJC Scopus subject areas

  • General Physics and Astronomy


Dive into the research topics of 'Strong-signal theory of a free-electron laser'. Together they form a unique fingerprint.

Cite this