Ma. Krasilnikov et Mv. Kuzelev, NONLINEAR-INTERACTION OF COPROPAGATING AND COUNTERPROPAGATING WAVES RADIATED BY AN ELECTRON REAM AN ONDULATOR ELECTRODYNAMIC SYSTEM, Plasma physics reports, 20(5), 1994, pp. 418-425
An electron beam moving in a spatially periodic field can be a source
of a type of shortwave radiation called ondulator radiation [1]. The s
timulated ondulator radiation is a key physical mechanism for electrom
agnetic radiation sources such as a free electron lasers [2, 3]. In th
e presence of a periodic field, the electron beam excites two electrom
agnetic waves: a copropagating and a counterpropagating one. Usually,
the theory treats the excitation of these ondulator waves separately.
But this is not always justified because of a possible nonlinear wave
interaction due to which the co- and counterwaves may effect each othe
r, resulting in energy redistribution between the ondulator systems. T
his work considers these phenomena.