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Nonlinear scattering from a plasma column: 2. Special cases
Author(s) -
Crawford F. W.,
Harker K. J.
Publication year - 1983
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1029/rs018i005p00785
Subject(s) - scattering , nonlinear system , physics , wavelength , computational physics , long wavelength limit , radiation , optics , dipole , quantum mechanics
A previous analysis of the scattered signal excited by nonlinear mixing of two plane waves normally incident on an infinitely long column of plasma is specialized to several simplified cases. Simplified expressions are derived for the nonlinear scattering coefficients in the long wavelength limit, and it is established that dipole and quadrupole components should predominate in the polar radiation pattern. The homogeneous column is treated as a limiting form of the general analysis, and is also studied in the long wavelength limit. The special case of second harmonic generation due to a single incident wave is treated in detail. Computations of nonlinear scattering coefficients, and the corresponding polar radiation pattern are presented. The results of the analysis are used to assess the feasibility of observing nonlinear scattering from meteor trails.