Scattering of surface plasmons by one-dimensional periodic nanoindented surfaces
arXiv:cond-mat/0508041 · doi:10.1103/PhysRevB.72.161405
Abstract
In this work, the scattering of surface plasmons by a finite periodic array of one-dimensional grooves is theoretically analyzed by means of a modal expansion technique. We have found that the geometrical parameters of the array can be properly tuned to achieve optimal performance of the structure either as a Bragg reflector or as a converter of surface plasmons into light. In this last case, the emitted light is collimated within a few degrees cone. Importantly, we also show that a small number of indentations in the array are sufficient to fully achieve its functional capabilities.
5 pages, 5 figures; changed sign convention in some definitions
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