Polarization effects in 3D vectorial-induced current reconstructions

Abstract : In tomography algorithms, the complex amplitude scattering matrix corresponds to the input parameter. When considering 3D targets, the scattering matrix now contains vectorial information. Thus, this scattering matrix might be calculated with various polarization projections. Moreover, when dealing with experimental data, we are almost every time faced with truncated data. We focus here on the impact of selecting parts of the amplitude scattering matrix elements versus others and in particular on the influence of the polarization choices on the imaging results. In order to better apprehend the physical content associated to each polarization term, the study is conducted with a simple vectorial-induced current reconstruction algorithm allowing reconstruction of qualitative maps of the scene. This algorithm is applied on scaled models of aggregates combined with experimental scattered fields acquired in the microwave frequency range.
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https://hal.archives-ouvertes.fr/hal-00938982
Contributor : Christelle Eyraud <>
Submitted on : Wednesday, January 29, 2014 - 5:47:36 PM
Last modification on : Wednesday, April 10, 2019 - 4:18:18 PM

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Christelle Eyraud, Rodolphe Vaillon, Amelie Litman, Jean-Michel Geffrin, O. Merchiers. Polarization effects in 3D vectorial-induced current reconstructions. Journal of the Optical Society of America. A, Optics and image science, Optical Society of America, 2013, 30 (10), pp.1967-1974. ⟨10.1364/JOSAA.30.001967⟩. ⟨hal-00938982⟩

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