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Proceedings Paper

Plasmonic heterostructures for addressable nanophotonics
Author(s): Gary P. Wiederrecht; Gregory A. Wurtz; Alexandre Bouhelier; Jeffrey E. Hall; Jasmina Hranisavljevic
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Paper Abstract

Plasmonics applications will benefit if reliable means to alter plasmon absorption and damping properties via external inputs are found. We are working towards this goal by functionalizing noble metal films with polarizable, excitonic molecular films. Examples include molecular j-aggregates, whose excitonic absorptions can be photobleached to modify plasmon absorption properties. We report two developments in this area. The first is the observation of coherent polarization coupling between the exciton of a molecular J-aggregate and the electronic polarization of noble metal nanoparticles. The second is a new far-field method to directly observe surface plasmon propagation, demonstrating that the lateral intensity decay length is affected by a change of the interface property. The method relies on the detection of the intrinsic lossy modes associated with plasmon propagation in thin films. We also uniquely introduce a method to excite a broad spectral distribution of surface plasmon simultaneously throughout the visible spectrum allowing surface plasmon based spectroscopy to be performed.

Paper Details

Date Published: 20 April 2006
PDF: 12 pages
Proc. SPIE 6195, Nanophotonics, 61950T (20 April 2006); doi: 10.1117/12.666660
Show Author Affiliations
Gary P. Wiederrecht, Argonne National Lab. (United States)
Gregory A. Wurtz, Argonne National Lab. (United States)
Alexandre Bouhelier, Argonne National Lab. (United States)
Jeffrey E. Hall, Argonne National Lab. (United States)
Jasmina Hranisavljevic, Argonne National Lab. (United States)

Published in SPIE Proceedings Vol. 6195:
David L. Andrews; Jean-Michel Nunzi; Andreas Ostendorf, Editor(s)

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