23 December 1994 Solution of the electromagnetic scattering problem for core-mantle spheroids
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Abstract
The solution of the electromagnetic scattering problem for cofocal coated spheroids obtained by the method of separation of variables in a spheroidal coordinate system is presented. The main features of the scheme of the solution are: (a) the incident, scattered and internal fields are divided into two parts: the axisymmetric part which does not depend on the azimuthal angle and the non-axisymmetric one; the diffraction problem is solved independently for each part; (b) the scalar potentials for the solution of each problem are chosen by a special way: the Abraham's potentials (for the axisymmetric part) and superposition of the potentials used for spheres and cylinders (for the non-axisymmetric part). Then, we derive the systems of linear algebraic equations in the simplest form and can investigate them analytically. Such a scheme allows to solve the light scattering problem for spheroids with arbitrary asphericity and has an advantage in comparison with other approaches, especially for large values of the aspect ratio: the computational time is being reduced in about ten times for small values of the aspect ratio (a/b equals 2) and in about hundred times for a/b equals 10 in comparison with the well-known solution of Asano and Yamamoto.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Victor G. Farafonov "Solution of the electromagnetic scattering problem for core-mantle spheroids", Proc. SPIE 2309, Passive Infrared Remote Sensing of Clouds and the Atmosphere II, (23 December 1994); doi: 10.1117/12.196667; https://doi.org/10.1117/12.196667
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