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The spatio-temporal structure of the bulk wakefields excited by arelativistic electron bunch in plasma of semiconductors and semimetals isstudied. It is shown that these wakefield consists of the field of longitudinalplasmons and Cherenkov electromagnetic radiation, which is a set of eigenelectromagnetic waves of the semiconductor or semimetal waveguide. A branch ofthe surface plasmons appears in a waveguide with an axial vacuum channel. Theprocess of wake excitation of the surface plasmons by the relativistic electronbunch is also investigated. The intensity of the excited wake surface wave isdetermined.

Excitation of bulk and surface wakefields by a relativistic electron bunch in plasma of semiconductors and semimetals