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Conference Papers Year : 1997

Momentum-dependent electromagnetic T-matrix and dynamic effective properties of random media

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Yves-Patrick Pellegrini
Pascal Thibaudeau
Brian Stout

Abstract

We discuss the problem of the dynamic dielectric and magnetic response on the whole frequency range of a composite material. We derive exact one-body expressions of the momentum-dependent mean constitutive kernels, for an assembly of dielectric and magnetic spheres of finite size, on the basis of their T-matrix. The effective homogeneous-like constitutive constants are defined, and used in a Coherent Potential Approximation. In a second step, we solve the dispersion relation in order to extract observable quantities.

Dates and versions

cea-00412640 , version 1 (02-09-2009)

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Cite

Yves-Patrick Pellegrini, Pascal Thibaudeau, Brian Stout. Momentum-dependent electromagnetic T-matrix and dynamic effective properties of random media. Fourth International Conference on Electrical Transport and Optical Properties of Inhomogeneous Media (ETOPIM 4), Jul 1996, St Petersburg / Moscow, Russia. pp.72-76, ⟨10.1016/S0378-4371(97)00061-7⟩. ⟨cea-00412640⟩
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