WAVE PROPAGATION IN A NON-MAXWELLIAN, MAGNETOACTIVE, NONLINEAR PLASMA.
Physical sciences research papers.
AIR FORCE CAMBRIDGE RESEARCH LABS L G HANSCOM FIELD MASS
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Expressions for the components of a nonlinear ac conductivity tensor have been derived - corresponding to a temperate, weakly ionized, lossy magnetoplsma. The electrical conductivity tensor is nonlinear because its components are functions of the isotropic part of the electron velocity distribution function f, where f depends upon the amplitude and polarization of the local rf field By diagonalizing the conductivity tensor and referring Maxwells field equations to the principal co-ordinate directions, it is shown that an elliptically polarized em wave normally incident upon an inhomogeneous magnetoplasma slab will launch only a right-hand and left-hand wave into the plasma if both the dc magnetic field and the electron density gradients are perpendicular to the interfaces. The net reflection transmission coefficients for left-hand and right-hand modes are computed using a Runge-Kutta numerical integration procedure. For low power levels, the right-hand and left-hand waves propagate independently of one another. For high field intensities, the propagation of the right-hand mode depends upon the amplitude of the left-hand mode, and vice versa. Reflection and transmission coefficients are presented as a function of normalized plasma parameters. Author
- Plasma Physics and Magnetohydrodynamics
- Radiofrequency Wave Propagation