Transient wave imaging of small scatterers in electromagnetics

Abstract : Recent works [S. Gdoura and L. Guadarrama Bustos, "Transient wave imaging of anomalies: a numerical study," in Mathematical and Statistical Methods for Imaging, AMS series 548, H. Ammari et al. eds., 13pp.] on imaging of small 3-D bounded anomalies in fluid acoustics using transient (time-domain) signals are extended herein to the demanding electromagnetic case in the full Maxwell setting. Emphasis is on three items: asymptotic expressions of the scattered field (magnetic and electric) due to a spherical dielectric inclusion illuminated by an impulsive vector source, a time-reversal fomulation enabling to provide the position of this inclusion. The next step, time-reversal in somewhat attenuating media and ways to achieve it within the same wavefield framework, is underlined in conclusion
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Contributor : Dominique Lesselier <>
Submitted on : Monday, October 15, 2012 - 5:41:25 PM
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Souhir Gdoura, Dominique Lesselier. Transient wave imaging of small scatterers in electromagnetics. NUMELEC'12, Jul 2012, Marseille, France. pp.64-65, ⟨10.1088/1742-6596/386/1/012010⟩. ⟨hal-00742064⟩



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