Solitary Surface Waves in Plasma Slabs
Soviet Journal of Plasma Physics, Vol. 12, No. 8, Pp. 552-556 (1986)
Abstract
A nonlinear equation incorporating terms up to third order in the field
is derived to describe the interaction of both symmetric and antisymmetric
surface waves in plasma slabs of arbitrary thickness. This equation is derived
in kinetic theory for the case of specular reflection of particles from the
boundaries. The nonlinear interaction of antisymmetric surface waves
can give rise to the formation of envelope solitons. The interaction
lengths of the waves should be on the order of the slab thickness;
i.e., these lengths should be of such a magnitude that the wave has an inverse
dispersion (the frequency decreases with increasing wave number).
The slab thickness must be quite small for this (namely, much less than
the velocity of light divided by the electron plasma frequency).
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