Surface polaritons of a left-handed curved slab
Mounir Faddaoui, Antoine Folacci, Paul Gabrielli
TL;DR
This paper investigates how surface polaritons behave on a curved slab made of negative-refractive-index material, revealing that certain polaritons with opposite group and phase velocities can propagate without attenuation.
Contribution
It provides new insights into the dispersion and attenuation of surface polaritons on curved left-handed slabs, highlighting conditions for lossless propagation.
Findings
Left-handed surface polaritons can propagate without attenuation.
Curvature influences the dispersion relations of surface polaritons.
Opposite group and phase velocities characterize lossless polaritons.
Abstract
We study the propagation of surface polaritons in a left-handed curved slab, i.e. a curved slab made of a negative-refractive-index material. We consider the effects of the slab curvature on their dispersion relations and attenuations. We show more particularly that surface polaritons with a "left-handed behavior" (i.e. with opposite group and phase velocities) propagate without any attenuation.
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Taxonomy
TopicsMetamaterials and Metasurfaces Applications · Plasmonic and Surface Plasmon Research · Advanced Antenna and Metasurface Technologies