Design of plasmonic nanoantennae for enhancing spontaneous emission
Anno: 2007
Autori: Rogobete L., Kaminski F., Agio M., Sandoghdar V.
Affiliazione autori: 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.
Giornale/Rivista: OPTICS LETTERS
Volume: 32 (12) Da Pagina: 1623 A: 1625
Parole chiavi: Optical-properties; Decay; Molecule; Nanostructures; Fluorescence; ParticlesDOI: 10.1364/OL.32.001623Citazioni: 237dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2025-05-18Riferimenti tratti da Isi Web of Knowledge: (solo abbonati)
