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Scattering corrections for Maxwell Garnett mixing rule
Author(s) -
Sihvola Ari,
Sharma Reena
Publication year - 1999
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/(sici)1098-2760(19990820)22:4<229::aid-mop3>3.0.co;2-9
Subject(s) - mixing (physics) , scattering , extinction (optical mineralogy) , dielectric , permittivity , microwave , physics , polarizability , optics , computational physics , forward scatter , condensed matter physics , quantum mechanics , molecule
Abstract Correction terms are derived for the polarizability of a dielectric sphere and Maxwell Garnett mixing formula. The correction terms take into account the size of the scatterers, and therefore depend on the frequency of the incident field. However, the limitation of the mixing rule result is that the volume fraction of the inclusions has to be small. The imaginary part of the effective permittivity is shown to be consistent with the extinction due to scattering by small inclusions. ©1999 John Wiley & Sons, Inc. Microwave Opt Technol Lett 22: 229–231, 1999.