Low frequency surface waves in the presence of an external high frequency electric field
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The problem of surface sound propagation in the presence of external high frequency dipole electric field is investigated using Vlasov-Poisson equations. The structure of the electric field of these surface waves is also determined. It has been found that the ion sound waves that exist in the presence of external high frequency waves are true surface waves while those without the external field are quasi-surface waves as the former waves decay within one wavelength away from the surface.
KeywordsSurface waves spectra and damping specular reflection semi-bounded plasma low frequency waves Vlasov-Poisson equation
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