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=...
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.
|Subjects:||Physical Science > Nano objects|
Physical Science > Quantum phenomena
Physical Science > Photonics
|Deposited By:||Anuj Seth|
|Deposited On:||26 May 2009 11:22|
|Last Modified:||26 May 2009 11:22|
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