title: Controlled photon transfer between two individual nanoemitters via shared high-Q modes of a microsphere resonator.
abstract: We realize controlled cavity-mediated photon transfer between two single nanoparticles over a distance of several tens of micrometers. First, we show how a single nanoscopic emitter attached to a near-field probe can be coupled to high-Q whispering-gallery modes of a silica microsphere at will. Then we demonstrate transfer of energy between this and a second nanoparticle deposited on the sphere surface. We estimate the photon transfer efficiency to be about 6 orders of magnitude higher than that via free-space propagation at comparable separations.
authors.affiliation: Nano-Optics, Humboldt University, Hausvogteiplatz 5-7, D-10117 Berlin, Germany.
authors.forename: S
authors.initials: S
authors.lastname: Götzinger
authors.forename: L
authors.initials: L
authors.lastname: de S Menezes
authors.forename: A
authors.initials: A
authors.lastname: Mazzei
authors.forename: S
authors.initials: S
authors.lastname: Kühn
authors.forename: V
authors.initials: V
authors.lastname: Sandoghdar
authors.forename: O
authors.initials: O
authors.lastname: Benson
mesh_terms: D003198:Computer Simulation; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008027:Light; D018499:Linear Energy Transfer; D008422:Materials Testing; D008863:Microspheres; D008962:Models, Theoretical; D049329:Nanostructures / Q000737:chemistry* / Q000528:radiation effects; D055095:Optics and Photonics / Q000295:instrumentation*; D017785:Photons