Abstract

THE beam of “hot” ballistic electrons which were first obtained experimentally in (1) is considered when passing through the heterostructures consisting of two potential barriers in barriers in the presence of FEL tuning in infra-red region. In the presence of the first barrier the electron beam in the FEL electromagnetic field can either absorb or emit the field quanta. The initial electron beam may split into states n=l (absorption of one quantum ), n=0 (the beam energy unchanged), and n=-l (emission of one quantum). The interference of the states with n=0. n=l and n=0, n=-1 results in the initiation of two traveling modulation waves at electromagnetic frequency w.

© 1996 IEEE