Sponsor
This research was funded by the US Department of Energy Basic Science Office under Contract No. DE-FG02-10ER46406.
Published In
Applied Physics Letters
Document Type
Article
Publication Date
10-1-2012
Subjects
Plasmons (Physics), Nanostructures
Abstract
Electron emission microscopy is used to visualize plasmonic routing in gold nano-structures. We show that in single-crystalline gold structures reliable routing can be achieved with polarization switching. The routing is due to the polarization dependence of the photon-to-plasmon coupling, which controls the mode distribution in the plasmonic gold film. We use specifically designed, single-crystalline planar structures. In these structures, the plasmon propagation length is sufficiently large such that significant plasmon power can be delivered to the near-field region around the end tips of the router. Solid state devices based on internal electron excitation and emission processes appear feasible.
DOI
10.1063/1.4757125
Persistent Identifier
http://archives.pdx.edu/ds/psu/8600
Citation Details
Könenkamp, R. R., Word, R. C., Fitzgerald, J. J., Nadarajah, A., & Saliba, S. S. (2012). Controlled spatial switching and routing of surface plasmons in designed single-crystalline gold nanostructures. Applied Physics Letters, 101(14), 141114.
Description
This is the publisher's final pdf. Article appears in Applied Physics Letters (http://apl.aip.org/) and is copyrighted (2012) by the American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.