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.

© 1995 Optical Society of America

Internal, near-surface, and scattered electromagnetic fields for a layered spheroid with arbitrary illumination

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Internal and near-surface electromagnetic fields for an absorbing spheroidal particle with arbitrary illumination

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Electromagnetic field calculations for an irregularly shaped, near-spheroidal particle with arbitrary illumination

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Electromagnetic fields for a spheroidal particle with an arbitrary embedded source

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Scattering of a spheroidal particle illuminated by a Gaussian beam

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