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Proceedings Paper

Plasmonic nanophotonics: manipulating light and sensing molecules
Author(s): Vladimir M. Shalaev; Viktor A. Podolskiy; Andrey K. Sarychev
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Paper Abstract

We show that plamonic nanomaterials allow the localization and guiding light, with high efficiency, and molecule sensing, with unsurpassed sensitivity. Two types of palsmonic naomaterials are considered: metal nanowires and fractal colloid aggregates. The electromagnetic field distribution for thin metal nanowires is found, by using the discrete dipole approximation. The plasmon polariton modes in wires are numerically simulated. These modes are found to be dependent on the incident light wavelength and direction of propagation. The existence of localized plasmon modes and strong local field enhancement in percolation nanowire composites is demonstrated. Novel left-handed materials in the near-infrared and visible are proposed based on nanowire composites. Dramatic enhancement in fractal colloid aggregates and, especially, in fractal-microcavity composites are discussed along with new potential applications of these plasmonic materials.

Paper Details

Date Published: 24 June 2002
PDF: 11 pages
Proc. SPIE 4806, Complex Mediums III: Beyond Linear Isotropic Dielectrics, (24 June 2002); doi: 10.1117/12.472998
Show Author Affiliations
Vladimir M. Shalaev, Purdue Univ. (United States)
Viktor A. Podolskiy, Priceton Univ. (United States)
Andrey K. Sarychev, Purdue Univ. (United States)

Published in SPIE Proceedings Vol. 4806:
Complex Mediums III: Beyond Linear Isotropic Dielectrics
Akhlesh Lakhtakia; Graeme Dewar; Martin W. McCall, Editor(s)

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