Scattering of electromagnetic waves by thin high contrast dielectrics II: asymptotics of the electric field and a method for inversion

نویسندگان

  • David M. Ambrose
  • Jay Gopalakrishnan
  • Shari Moskow
  • Scott Rome
چکیده

We consider the full time-harmonic Maxwell equations in the presence of a thin, high-contrast dielectric object. As an extension of previous work by two of the authors, we continue to study limits of the electric field as the thickness of the scatterer goes to zero simultaneously as the contrast goes to infinity. We present both analytical and computational results, including simulations which demonstrate that the interior transverse component of the electric field has limit zero, and a rigorous asymptotic approximation accurate in the far field. Finally, we propose an inversion method to recover the geometry of the scatterer given its two-dimensional plane and we present numerical simulations using this method.

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تاریخ انتشار 2015