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Journal of Nanophotonics • Open Access

Bruggeman formalism versus "Bruggeman formalism": particulate composite materials comprising oriented ellipsoidal particles

Paper Abstract

Two different formalisms for the homogenization of composite materials containing oriented ellipsoidal particles of isotropic dielectric materials are being named after Bruggeman. Numerical studies reveal clear differences between the two formalisms which may be exacerbated: (i) if the component particles become more aspherical, (ii) at mid-range values of the volume fractions, and (iii) if the homogenized component material is dissipative. Only the correct Bruggeman formalism uses the correct polarizability density dyadics of the component particles in the homogenized composite material (HCM) and is directly derivable from the frequency-domain Maxwell postulates specialized for the HCM.

Paper Details

Date Published: 18 June 2012
PDF: 7 pages
J. Nanophoton. 6(1) 069501 doi: 10.1117/1.JNP.6.069501
Published in: Journal of Nanophotonics Volume 6, Issue 1
Show Author Affiliations
Tom G. Mackay, The Univ. of Edinburgh (United Kingdom)
Akhlesh Lakhtakia, The Pennsylvania State Univ. (United States)

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