Demonstration of a two-stage backward-wave-oscillator free-electron laser

Y. Carmel*, V. L. Granatstein, A. Gover

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

78 Scopus citations


An experimental study of a two-stage millimeter-wave source in which the same intense relativistic electron beam first produces powerful (500-MW) radiation at 12.5 GHz and then uses that radiation as a "pump" for a free-electron-laser interaction at frequency f>140 GHz is described. Implication for two-stage free-electron-laser experiments with reduced electron energy requirements are discussed.

Original languageEnglish
Pages (from-to)566-569
Number of pages4
JournalPhysical Review Letters
Issue number7
StatePublished - 1983


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