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Journal article

Near-field excitation of nanoantenna resonance

By Bakker, R. M.; Boltasseva, Alexandra1,2; Liu, Z.; Pedersen, Rasmus Haugstrup3,4; Gresillon, S.; Kildishev, A. V.; Drachev, V. P.; Shalaev, V. M.

From

Nanophotonics, Department of Photonics Engineering, Technical University of Denmark1

Department of Photonics Engineering, Technical University of Denmark2

Lab-on-a-Chip, Department of Micro- and Nanotechnology, Technical University of Denmark3

Department of Micro- and Nanotechnology, Technical University of Denmark4

An array of paired elliptic nanoparticles designed to enhance local fields around the particle pair is fabricated with gold embedded in quartz. Light excites a coupled plasmon resonance in the particle pair and the system acts like a plasmonic nanoantenna providing an enhanced electromagnetic field.

Near-field scanning optical microscopy and finite element modeling are used to study the local field effects of the nanoantenna system. Local illumination shows similar resonant properties as plane wave illumination: a strong, localized optical resonance for light polarized parallel to the main, center-to-center axis.

Language: English
Year: 2007
Pages: 13682-13688
ISSN: 10944087
Types: Journal article
DOI: 10.1364/OE.15.013682

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