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Updated: May 18, 2026

Scattering And Absorption of Light in Planetary Regoliths
Published on: July 1, 2019
Broadband computation of the scattering coefficients of infinite arbitrary cylinders
Cédric Blanchard1, Brahim Guizal, Didier Felbacq
1Laboratoire Charles Coulomb, University of Montpellier 2, 34071 Montpellier, France. cedric@ugr.es
Abstract:
We employ a time-domain method to compute the near field on a contour enclosing infinitely long cylinders of arbitrary cross section and constitution. We therefore recover the cylindrical Hankel coefficients of the expansion of the field outside the circumscribed circle of the structure. The recovered coefficients enable the wideband analysis of complex systems, e.g., the determination of the radar cross section becomes straightforward. The prescription for constructing such a numerical tool is provided in great detail. The method is validated by computing the scattering coefficients for a homogeneous circular cylinder illuminated by a plane wave, a problem for which an analytical solution exists. Finally, some radiation properties of an optical antenna are examined by employing the proposed technique.
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