Radiation interaction of nonlinear electron oscillators in a small volume of the active resonant medium at electrostatic focusing
It is shown that in the area of three-dimensional interaction radiation communication system of oscillators leads to a build-up phase group and the total dipole moment in time. Within the framework of a simplified three-dimensional problem studied self-excitation of the small portion of the active medium. In addition to the cross motion of electrons in each ensemble accounted longitudinal movement and interaction of a large number of bands shifted in the longitudinal direction. As time non-linear effects on the three-dimensional portion of the active medium result in the achievement of steady-state generation with weak fluctuations of the total dipole moment. The magnitude of dipole moment determines the intensity of the vortex radiation fields in the far field.