title: Spontaneous emission enhancement of a single molecule by a double-sphere nanoantenna across an interface.
abstract: We report on two orders of magnitude reduction in the fluorescence lifetime when a single molecule placed in a thin film is surrounded by two gold nanospheres across the film interface. By attaching one of the gold particles to the end of a glass fiber tip, we could control the modification of the molecular fluorescence at will. We find a good agreement between our experimental data and the outcome of numerical calculations.
authors.affiliation: Max Planck Institute for the Science of Light, 91058 Erlangen, Germany.
authors.forename: K-G
authors.initials: KG
authors.lastname: Lee
authors.forename: H
authors.initials: H
authors.lastname: Eghlidi
authors.forename: X-W
authors.initials: XW
authors.lastname: Chen
authors.forename: A
authors.initials: A
authors.lastname: Renn
authors.forename: S
authors.initials: S
authors.lastname: Götzinger
authors.forename: V
authors.initials: V
authors.lastname: Sandoghdar
mesh_terms: D003198:Computer Simulation; D008027:Light; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D008962:Models, Theoretical; D055100:Optical Fibers; D012542:Scattering, Radiation; D020349:Surface Plasmon Resonance / Q000379:methods*