On Possibility of Two-Frequency Regime of Terahertz Circular Laser Generation

Terahertz gas-discharge lasers usually work with active substance pumping through the resonator. Movement of active substance particles along the resonator axis causes Doppler shift of radiation frequency. Using this effect, it is possible to create the circular terahertz laser generating two frequencies simultaneously. In the paper the estimation of some parameters of two-frequency regime has been made and potential of two-frequency terahertz laser scheme proposed has been shown