Design of plasmonic nanoantennae for enhancing spontaneous emission
Year: 2007
Authors: Rogobete L., Kaminski F., Agio M., Sandoghdar V.
Autors Affiliation: ETH, Phys Chem Lab, CH-8093 Zurich, Switzerland.
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.
Journal/Review: OPTICS LETTERS
Volume: 32 (12) Pages from: 1623 to: 1625
KeyWords: Optical-properties; Decay; Molecule; Nanostructures; Fluorescence; ParticlesDOI: 10.1364/OL.32.001623Citations: 235data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-11-17References taken from IsiWeb of Knowledge: (subscribers only)