Cerenkov maser operation at 1–2 mm wavelengths

Garate, E. P.; Moustaizis, S.; Buzzi, J. M.; Rouille, C.; Lamain, H.; Walsh, J.; Johnson, B.
May 1986
Applied Physics Letters;5/19/1986, Vol. 48 Issue 20, p1326
Academic Journal
The interaction of a dense (n∼1012 cm-3), mildly relativistic (1.8<γ<3) electron beam and a cylindrical, dielectric lined waveguide has produced tunable microwave radiation in the 150–310 GHz frequency range with an estimated power output of 500 kW at 150 GHz and 10 kW at 310 GHz. The measured output frequency agrees well with the frequency for which the phase velocity of the TM01 mode of the dielectric lined guide is synchronous with the electron beam velocity.


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