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Telecommunications and Radio Engineering

Published 12 issues per year

ISSN Print: 0040-2508

ISSN Online: 1943-6009

SJR: 0.185 SNIP: 0.268 CiteScore™:: 1.5 H-Index: 22

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Excitation of Surface Electromagnetic Wave Pulses by Electron Bunches Intersecting a Metal-Dielectric-Semiconductor Structure

Volume 60, Issue 7-9, 2003, 12 pages
DOI: 10.1615/TelecomRadEng.v60.i789.170
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ABSTRACT

Transition radiation of surface electromagnetic pulses by a nonrelativistic electron bunch crossing a metal-dielectric-semiconductor structure has been investigated. The bunch is a rotation ellipsoid with uniform distribution of charge over the volume density and it moves along the normal to the structure from the direction of the metal. The dissipation of the radiation energy in the semiconductor is taken into account. It has been shown that the spectrum of transition radiation of surface waves has the form of a sequence of fastdecreasing oscillations. The appearance of maxima of the radiation spectrum density is stipulated by the fulfillment of some resonant ratios between the width of the dielectric layer, sizes of the bunch, the radiation wavelength, and the Van Kampen wavelength. It has been found that there are such values of the width of the dielectric layer at that the pulse energy and the coefficient of efficiency being equal to the ratio of the pulse energy to the total kinetic energy of electrons in the bunch, have the maximal vales.

CITED BY
  1. Averkov Yu.O., Yakovenko V.M., Some peculiarities of surface electromagnetic waves radiated by electron bunches that intersect a metal-dielectric-semiconductor structure, The Fifth International Kharkov Symposium on Physics and Engineering of Microwaves, Millimeter, and Submillimeter Waves (IEEE Cat. No.04EX828), 1, 2004. Crossref

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