Abstract
Electron kinetic reaction to electromagnetic propagation in a three-fluid plasma is studied. The kinetic equation considered is of the Fokker-Planck type used in the theory of Brownian motion. Linearization of the self-field reaction is made with the remainder of the constitutive terms depicting a time derivation along an electron trajectory generated by the external field, the free-space transverse electric vector. Use of the Green’s function for the self-fieldless case obtains an integral equation for the true field. General time and frequency domain criteria are established defining sufficient conditions under which the self-field reaction is negligible. Application to a propagating wave of some curvature obtains a form of nonlinear mode-coupling transformation in which energy is transferred from the electromagnetic field to the electron flow field. Semiquantitative estimates are derived for the spatial attenuation coefficient and effective plasma frequency modification.
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