Curvature-induced radiation of surface plasmon polaritons propagating around bends

Details Curvature-induced radiation of surface plasmon polaritons propagating around bends Curvature-induced radiation of surface plasmon polaritons propagating around bends

2007-03-14

arxiv.org/abs/physics/0703150v1

Phys. Rev. A 75, 063816 (2007)

Physics

Optics

9 pages, 8 figures, submitted to Physical Review E

Scientific paper

10.1103/PhysRevA.75.063816

We present a theoretical study of the curvature-induced radiation of surface plasmon polaritons (SPPs) propagating around bends at metal-dielectric interfaces. We explain qualitatively how the curvature leads to distortion of the phase front, causing the fields to radiate energy away from the metal-dielectric interface. We then quantify, both analytically and numerically, radiation losses and energy transmission efficiencies of SPPs propagating around bends with varying radii- as well as sign-of-curvature.

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