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Updated: Jun 6, 2026

Scattering And Absorption of Light in Planetary Regoliths
Published on: July 1, 2019
Internal and near-surface electromagnetic fields for a spheroidal particle with arbitrary illumination
Abstract:
A theoretical procedure in which a spheroidal coordinate separation-of-variables solution is used is developed for the determination of the internal and the near-surface electromagnetic fields for an arbitrary monochromatic field that is incident upon a homogeneous spheroidal particle. Calculations are presented for both the prolate and the oblate geometries, demonstrating the effects of particle size, particle axis ratio, and the orientation and character (plane-wave and focused Gaussian beam) of the incident field on the resultant internal and near-surface electromagnetic-field distributions.
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