Application of Modified Bragg Structures in High-Power Submillimeter Cyclotron Autoresonance Masers

Abstract

We perform theoretical analysis and numerical simulation of cyclotron autoresonance masers, in which we propose using electrodynamic systems in the form of hybrid two-mirror cavities based on modified and conventional Bragg reflectors. It is shown that a stable regime of narrow-band generation with a multimegawatt power level can be achieved at a frequency of about 300 GHz in the described scheme of a generator based on a near-axis, moderately relativistic electron beam with an accelerating voltage of 500 kV and a current of 10 A, where the transverse size (diameter) of the interaction space is about 5 wavelengths and the guiding magnetic field is about 5 T.