Efficient coupling of surface plasmon polaritons to radiation using a bi-grating
Worthing, P. T.; Barnes, William L.
Date: 30 October 2001
Journal
Applied Physics Letters
Publisher
American Institute of Physics
Publisher DOI
Abstract
A nanostructured surface in the form of a bi-grating is shown to efficiently couple surface plasmon polaritons to free-space radiation in the visible part of the spectrum. Coupling was achieved for all propagation directions of the surface mode and the efficiency found to be independent of the propagation direction, taking a mean value ...
A nanostructured surface in the form of a bi-grating is shown to efficiently couple surface plasmon polaritons to free-space radiation in the visible part of the spectrum. Coupling was achieved for all propagation directions of the surface mode and the efficiency found to be independent of the propagation direction, taking a mean value of 60% for the structure examined. The consequences of the findings for emissive devices that make use of surface plasmons are discussed.
Physics and Astronomy
Faculty of Environment, Science and Economy
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