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2004-06-22

Non-Relativistic Scattering by Time-Varying Bodies and Media

By Dan Censor
Progress In Electromagnetics Research, Vol. 48, 249-278, 2004
doi:10.2528/PIER04031502

Abstract

We are interested in first order v/c velocity effects in scattering problems involving motion of media and scatterers. Previously constant velocities have been considered for scattering by cylindrical and spherical configurations. Presently time-varying motion - specifically harmonic oscillation - is investigated. A firstorder quasi-Lorentz transformation is introduced heuristically, in order to establish relations to existing exact Special-Relativistic results. We then consider simple problems of plane interfaces, normal incidence, and uniform motion, in order to introduce the model: Starting with an interface moving with respect to the medium in which the excitation wave is introduced, then considering the problem of an interface at rest and a moving medium contained in a half space. The latter corresponds to a Fizeau experiment configuration. Afterwards these configurations are considered for harmonic motion. This provides the method for dealing with the corresponding problems of scattering by a circular cylinder, involving harmonic motion. The present formalism provides a systematic approach for solving scattering problems in the presence of time-varying media and boundaries.

Citation

 (See works that cites this article)
Dan Censor, "Non-Relativistic Scattering by Time-Varying Bodies and Media," Progress In Electromagnetics Research, Vol. 48, 249-278, 2004.
doi:10.2528/PIER04031502
http://jpier.org/PIER/pier.php?paper=0403152

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