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Propagation of high-frequency surface plasmons on gold

Published online by Cambridge University Press:  01 February 2011

Robert Edwin Peale
Affiliation:
rep@physics.ucf.edu, University of Central Florida, Physics, 4000 Central Florida Blvd., Orlando, FL, 32816, United States, 407 823 5208, 407 823 5112
Olena Lopatiuk-Tirpak
Affiliation:
Olena.Tirpak@orhs.org, University of Central Florida, Physics, 4000 Central Florida Blvd., Orlando, FL, 32816, United States
Justin W Cleary
Affiliation:
jcleary@physics.ucf.edu, University of Central Florida, Physics, 4000 Central Florida Blvd., Orlando, FL, 32816, United States
Samantha Santos
Affiliation:
samantha@physics.ucf.edu, University of Central Florida, Physics, 4000 Central Florida Blvd., Orlando, FL, 32816, United States
John Henderson
Affiliation:
jhenderson@physics.ucf.edu, University of Central Florida, Physics, 4000 Central Florida Blvd., Orlando, FL, 32816, United States
David Clark
Affiliation:
winningham@physics.ucf.edu, University of Central Florida, Physics, 4000 Central Florida Blvd., Orlando, FL, 32816, United States
Leonid Chernyak
Affiliation:
chernyak@physics.ucf.edu, University of Central Florida, Physics, 4000 Central Florida Blvd., Orlando, FL, 32816, United States
Thomas Andrew Winningham
Affiliation:
winningham@physics.ucf.eduUniversity of Central FloridaPhysics4000 Central Florida Blvd.OrlandoFL32816United States
Enrique Del Barco
Affiliation:
delbarco@physics.ucf.edu, University of Central Florida, Physics, 4000 Central Florida Blvd., Orlando, FL, 32816, United States
Helge Heinrich
Affiliation:
hheinric@physics.ucf.edu, University of Central Florida, Physics, 4000 Central Florida Blvd., Orlando, FL, 32816, United States
Walter R Buchwald
Affiliation:
walter.buchwald@hanscom.af.mil, Air Force Research Lab, RYHC, 80 Scott Drive, Hanscom AFB, MA, 01731, United States
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Abstract

Surface plasmon propagation on gold over 0.1 – 1.6 micrometer distances for plasmon energies in the range 1.6 – 3.5 eV was characterized. Surface plasmons were excited by an electron beam near a grating milled in the gold. The spectra of out-coupled radiation reveal increasingly strong propagation losses as surface plasmon energy increases above 2.8 eV, but little effect in the range 1.6 – 2.8 eV. These results are in partial agreement with theoretical expectations.

Type
Research Article
Copyright
Copyright © Materials Research Society 2008

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