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Wave energy amplification in a metamaterial-based traveling-wave structure

Tan, Y. S. and Seviour, Rebecca (2009) Wave energy amplification in a metamaterial-based traveling-wave structure. EPL (Europhysics Letters), 87 (3). p. 34005. ISSN 0295-5075

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Abstract

We consider the interaction between a particle beam and a propagating electromagnetic wave in the presence of a metamaterial. We show that the introduction of a metamaterial gives rise to a novel dispersion curve which determines a unique wave particle relationship, via the frequency dependence of the metamaterial and the novel ability of metamaterials to exhibit simultaneous negative permittivity and permeability. Using a modified form of Madey's theorem we find that the novel dispersion of the metamaterial leads to an amplification of the EM wave power.

Item Type: Article
Subjects: Q Science > Q Science (General)
Q Science > QC Physics
Schools: School of Applied Sciences
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Depositing User: Sara Taylor
Date Deposited: 08 Nov 2012 15:06
Last Modified: 08 Nov 2012 15:06
URI: http://eprints.hud.ac.uk/id/eprint/15972

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