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Multiple Scattering in Disordered Materials III. Compact Representation of the Wave Number and Introduction of Local Currents
Author(s) -
Lenk R.
Publication year - 1981
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.2221030128
Subject(s) - scattering , normalization (sociology) , representation (politics) , attenuation , anisotropy , slab , physics , distribution function , space (punctuation) , mathematical analysis , statistical physics , mathematics , classical mechanics , optics , quantum mechanics , computer science , sociology , politics , geophysics , anthropology , law , political science , operating system
Some general conclusions are drawn from the basic mathematical structure of a theory developed in a preceding paper. Employing a proper normalization of the strength coefficients which are introduced there together with a reference function to get a general representation of the incident fields, these coefficients as well as the reference function get an enhanced physical meaning. With the normalized strength coefficients a compact representation for the wave number of the medium is derived. Especially the attenuation term Im k 2 shows a close correspondence to the kinematic expression on the one hand and to the local loss currents, on the other hand. Via the introduction of these currents a deeper understanding of the loss mechanism and the possibility to analyse the angular distribution of these currents is achieved. The fields for a half‐space and a slab are determined. The results exhibit the shortcomings of a macroscopical‐optical analysis in the case of anisotropic scattering at single scatterers.