Electromagnetic Radiation of Accelerated Electron Beams During Sliding Interaction with a Dielectric Surface

Abstract

The work is aimed at studying the properties of the “guiding” effect, namely the possibility of generating electromagnetic radiation when guiding beams of accelerated electrons. In this paper, we discuss a model of motion for the case of electron guiding during the interaction of electron beams with a dielectric surface. It is noted that when an electron beam is pressed against the surface of a dielectric by an external transverse electric field, in this case, due to the guiding effect, the electrons experience transverse vibrations when moving along the surface. Consequently, the movement of electrons in the transverse direction is accelerated and, accordingly, electron beams in the case of guiding should be a source of electromagnetic radiation, similar to the radiation of undulators and wigglers. The numerical estimates carried out in the work using the Larmor formula show that the power of this radiation should have a value sufficient for its experimental detection. This radiation should be of a pulsed nature against the background of continuous radiation. The power of the pulsed radiation must be several orders of magnitude greater than the power of the continuous background radiation.