Electromagnetic wave propagation and source radiation in space-time periodic media

Citation

Elachi, Charles (1971) Electromagnetic wave propagation and source radiation in space-time periodic media. Dissertation, California Institute of Technology. http://resolver.caltech.edu/CaltechETD:etd-10302003-143115

Abstract

The electromagnetic wave equations for the fields, potentials and Hertz vectors are derived and a Lorentz gauge is given for space-time dependent media. Electromagnetic wave propagation, electric and magnetic dipole radiation, and Cerenkov and transition radiation in sinusoidally space-time periodic dielectric, plasma and uniaxial plasma are studied and numerous radiation patterns are given. A special radiation effect in the uniaxial plasma is investigated. Finally the study is extended to general space-time periodic media (i.e., [epsilon] = [epsilon][subscript o][epsilon][subscript r] [1 + [epsilon][subscript 1] f(Kz - [Omega]t)] where f([Epsilon]) is a periodic function).

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