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Efficient end-fire coupling of surface plasmons in a metal waveguide

Fisher, Caitlin; Botten, Lindsay C.; Poulton, Christopher G.; McPhedran, Ross C.; de Sterke, C. Martijn


We present a semi-analytical study exploring the end-fire coupling of an incident beam into a surface plasmon mode propagating on a metal–dielectric interface. An energy-conserving projection method is used to solve for the resultant reflected and transmitted fields for a given incident beam, thereby determining the efficiency of the surface plasmon coupling. The coupling efficiency is found to be periodic with waveguide width due to the presence of a coupled, transversely propagating surface...[Show more]

CollectionsANU Research Publications
Date published: 2015-02-13
Type: Journal article
Source: Journal of the Optical Society of America B
DOI: 10.1364/JOSAB.32.000412


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