IEEE Trans. Plasma Sci. 18, 437 (1990)https://ireap.umd.edu/10.1109/27.559121990
R.A.
Kehs
Yuval
Carmel
Victor L.
Granatstein
William W.
Destler
Journal ArticlePlasma, Accelerator, and Nuclear PhysicsA three-wave free-electron laser (FEL) was operated with a powerful 8.4-GHz electromagnetic pump wave replacing the usual magnetostatic wiggler. The presence of a uniform axial magnetic field B/sub 0/ produced cyclotron-harmonic idler waves. Peaks in the emission spectrum corresponding to cyclotron harmonics were observed covering a frequency range from 16.5 to 130 GHz. The frequency spectrum of this novel FEL mechanism was tuned continuously by the variation of B/sub 0/.
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