Nano Archive

Design of plasmonic nanoantennae for enhancing spontaneous emission

Rogobete, Lavinia and Kaminski, Franziska and Agio, Mario and Sandoghdar, Vahid (2007) Design of plasmonic nanoantennae for enhancing spontaneous emission. OPTICS LETTERS, 32 (12). pp. 1623-1625.

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Official URL: http://www.opticsinfobase.org/ol/abstract.cfm?uri=...

Abstract

We apply two- and three-dimensional numerical calculations to study optical nanoantennae made of two coupled gold nanostructures, enclosing a single emitter in their gap. We show that, using structures manufacturable with today's nanotechnology, it is possible to increase the radiative decay rate by three orders of magnitude while keeping a quantum efficiency larger than 80% in the near-infrared regime. We examine the competition between the radiative and nonradiative processes in the presence of the antennae as a function of wavelength and antenna geometry. Our results hold great promise for improving the quantum efficiency of poor emitters such as silicon nanocrystals or carbon nanotubes.

Item Type:Article
Subjects:Physical Science > Nano objects
Physical Science > Quantum phenomena
Physical Science > Photonics
ID Code:3187
Deposited By:Anuj Seth
Deposited On:26 May 2009 11:22
Last Modified:26 May 2009 11:22

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