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Tom G. Mackay Reader School of Mathematics University of Edinburgh James Clerk Maxwell Building King's Buildings Edinburgh EH9 3JZ
tel: +44 (0)131 650 5058 |
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CSTFs as optical emitters
A range of exotic and potentially useful phenomenons, such as negative refraction, inverse Doppler effect, inverse Cerenkov radiation, and so forth, are associated with the propagation of electromagnetic plane waves with negative phase velocity (NPV). While much research to date has been directed towards NPV propagation in metamaterials, recent theoretical results suggest interesting possibilities in astronomical scenarios.
NPV propagation and homogenized composite mediums
NPV propagation and the special theory of relativity
NPV propagation and the general theory of relativity
A composite medium may viewed as an effectively homogeneous medium provided that wavelength(s) are sufficiently large. Significantly, such homogenized composite mediums may exhibit properties not exhibited by their components.
Homogenization via the strong-property-fluctuation theory
A limitation of homogenization formalisms
Group velocity enhancement through homogenization
Nonlinearity enhancement through homogenization
Voigt wave propagation in a homogenized composite medium