Title of article
Free-electron-laser-type interaction at 1 meter wavelength range
Author/Authors
Drori، نويسنده , , R and Jerby، نويسنده , , E، نويسنده ,
Pages
5
From page
284
To page
288
Abstract
A free-electron-laser (FEL)-type interaction is observed between a low-energy electron beam (∼ 0.7 keV) and a radio wave in the VHF range (λ = 1.1 m). The experimental device consists of a transmission-line (TEM-mode) cavity, and a folded-foil planar wiggler (λw = 4 cm). Coherent oscillations are observed in the fundamental-cavity mode (0.28 GHz) and in higher-order modes. The FEL-type mechanism is demonstrated here in a new regime, λ ⪢ λw.
Keywords
VHF , UHF , Radio Waves , Free-electron maser , Free-electron laser
Journal title
Astroparticle Physics
Record number
2001813
Link To Document