Restricted equivalence of paired epsilon–negative and mu–negative layers to a negative phase–velocity material ( aliasleft–handed material)

The time–harmonic electromagnetic responses of (a) a bilayer made of an epsilon–negative layer and a mu–negative layer, and (b) a single layer of a negative phase–velocity material are compared. Provided all layers are electrically thin, a restricted equivalence between (a) and (b) exists. The restr...

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Bibliographic Details
Published in:Optik (Stuttgart) 2003, Vol.114 (7), p.305-307
Main Authors: Lakhtakia, Akhlesh, Krowne, Clifford M.
Format: Article
Language:English
Subjects:
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
negative phase velocity
negative real permeability
Negative real permittivity
Optical materials
Optics
parallel–plate waveguide
perfect lens
phase velocity
Physics
Poynting vector
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Summary:The time–harmonic electromagnetic responses of (a) a bilayer made of an epsilon–negative layer and a mu–negative layer, and (b) a single layer of a negative phase–velocity material are compared. Provided all layers are electrically thin, a restricted equivalence between (a) and (b) exists. The restricted equivalence depends on the linear polarization state and the transverse wavenumber. Implications for perfect lenses and parallel–plate waveguides are considered.
ISSN:0030-4026
1618-1336
DOI:10.1078/0030-4026-00266