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Scattering and Velocity Dispersion of Electromagnetic Waves in Multiphase Dielectric Materials
Author(s) -
Shermergor T. D.,
Fokin A. G.,
Dikarev A. V.
Publication year - 1990
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221580232
Subject(s) - dispersion (optics) , isotropy , wave propagation , scattering , dielectric , electromagnetic radiation , physics , anisotropy , phase velocity , dispersion relation , mechanics , group velocity , computational physics , plane wave , classical mechanics , optics , quantum mechanics
The parameters are calculated of an electromagnetic wave propagating in a dielectric medium, which is a multiphase mixture of isotropic and anisotropic components. The dispersion equation is studied which is derived allowing for spatial dispersion giving rise to an additional branch in solving the equation and, correspondingly, to two waves, namely, a real wave and a virtual wave. The results are given of calculating numerically the scattering indices and the phase and group velocities of the two waves. In the case the calculations are made in terms of the Bourret approximation, the real wave alone must be treated.