THz plasmon amplification by optical pumping and electron beam
M.V. Davidovich, Saratov State University
Abstract
The linear theory of a traveling wave tube (TWT) or vacuum amplifier with a wide tape electron beam operating on plasmon modes is developed. The dispersion equation for electron waves and the gain per unit length with account for the dissipation in the structure are obtained. Strict solutions for dispersion and field distribution of surface plasmons in layered structures with conducting films and for electron waves amplified by a beam are obtained by the iteration method. To increase the gain, it is proposed to use active conductive semiconductor or graphene layers.
Speaker
Michael Davidovich
Saratov State University
Россия
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