Terahertz-Range High-Order Cyclotron Harmonic Planar Gyrotrons with Transverse Energy Extraction

We develop the new concept of terahertz gyrotrons with planar geometry and transverse diffraction radiation output. The advantage of this scheme comparing to the conventional cylindrical gyrotrons is the possibility of providing the radiation coherence at larger oversize factors by using the diffraction mode selection mechanism with respect to the ”open” transverse coordinate. Planar gyroton can operate as at fundamental as at high order cyclotron harmonics. The equidistant mode spectrum is beneficial for frequency multiplication.