DIFFRACTION RADIATION GENERATED BY A DENSITY-MODULATED ELECTRON BEAM FLYING OVER THE PERIODIC BOUNDARY OF THE MEDIUM SECTION. IV. STRUCTURES OF FINITE THICKNESS

The paper is focused on reliable modeling and analysis of the effects connected with the resonant transformation of the field of a plane and density-modulated electron beam flying over the periodic rough boundary of a natural or artificial medium. In the paper, such a medium occupies a part of the half-space, limited in thickness. Therefore, the numerous effects appeared due to transverse (in the thickness of the periodic structure) resonances, and the coupling of eigen regimes of two different periodic interfaces also contributes to the anomalies appearing due to excitation of the surface eigen waves of the periodic boundary interface that had been discussed in previous papers of this series.