MUSIC-type imaging of a small dielectric sphere buried in a half-space from exact and asymptotic data

Abstract : A small dielectric sphere is buried within the lower half of a two half-space medium and illuminated from the upper one by a dipole array. The Multi-Static Response Matrix is computed either by the Coupled Dipole Method or by an asymptotic formulation taking into account the coupling between the sphere and the interface. Comparisons between field data and between images of the inclusion are discussed. It is shown that whenever the inclusion is far from the interface, simplifying the Generalized Polarization Tensor to the one of an inclusion in free space is still reliable.
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Contributor : Dominique Lesselier <>
Submitted on : Friday, November 4, 2011 - 3:02:46 PM
Last modification on : Wednesday, April 3, 2019 - 1:58:10 AM

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  • HAL Id : hal-00638303, version 1

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Souhir Gdoura, Dominique Lesselier, P. C. Chaumet, Gaële Perrusson. MUSIC-type imaging of a small dielectric sphere buried in a half-space from exact and asymptotic data. XXIXth URSI General Assembly, Aug 2008, Chicago, United States. pp.CD-ROM. ⟨hal-00638303⟩

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