Nano Archive

Nanoparticle-mediated coupling of light into a nanowire

Knight, Mark W. and Grady, Nathaniel K. and Bardhan, Rizia and Hao, Feng and Nordlander, Peter and Halas, Naomi J. (2007) Nanoparticle-mediated coupling of light into a nanowire. NANO LETTERS, 7 (8). pp. 2346-2350.

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We show that a nanoparticle can serve as an efficient antenna for coupling of visible light into propagating plasmons of an Ag nanowire. For long wires, the coupling is maximal for incident light polarized perpendicular to the nanowire. For sub-10-mu m nanowires, the polarization corresponding to maximum emission from the ends of the nanowire was found to be strongly dependent on the nanowire geometry and position of the vicinal nanoparticle. This nanoparticle antenna-based approach offers a potential strategy for optimizing plasmon coupling into nanoscale metallic waveguides.

Item Type:Article
Subjects:Physical Science > Nanophysics
Physical Science > Nano objects
ID Code:2284
Deposited By:Anuj Seth
Deposited On:06 Jan 2009 11:51
Last Modified:20 Jan 2009 11:01

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