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Coherent Backscattering by Polydisperse Discrete Random Media: Exact T-Matrix ResultsThe numerically exact superposition T-matrix method is used to compute, for the first time to our knowledge, electromagnetic scattering by finite spherical volumes composed of polydisperse mixtures of spherical particles with different size parameters or different refractive indices. The backscattering patterns calculated in the far-field zone of the polydisperse multiparticle volumes reveal unequivocally the classical manifestations of the effect of weak localization of electromagnetic waves in discrete random media, thereby corroborating the universal interference nature of coherent backscattering. The polarization opposition effect is shown to be the least robust manifestation of weak localization fading away with increasing particle size parameter.
Document ID
20120010369
Acquisition Source
Goddard Space Flight Center
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Mishchenko, Michael I.
(NASA Goddard Inst. for Space Studies New York, NY, United States)
Dlugach, Janna M.
(National Academy of Sciences of the Ukraine Kiev, Ukraine)
Mackowski, Daniel W.
(Auburn Univ. AL, United States)
Date Acquired
August 26, 2013
Publication Date
November 11, 2011
Publication Information
Publication: Optics Letters
Volume: 36
Issue: 22
Subject Category
Optics
Report/Patent Number
GSFC.JA.00363.2012
Distribution Limits
Public
Copyright
Other

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