Phys. Rev. Lett.60, 279 (1988)https://ireap.umd.edu/10.1103/PhysRevLett.60.2791988
R.A.
Kehs
Yuval
Carmel
Victor L.
Granatstein
William W.
Destler
Journal ArticlePlasma, Accelerator, and Nuclear PhysicsA three-wave, free-electron laser was operated with a powerful 8.4-GHz electromagnetic "pump" wave replacing the usual magnetostatic wiggler.
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