title: Coupling of a single nitrogen-vacancy center in diamond to a fiber-based microcavity.
abstract: We report on the coupling of a single nitrogen-vacancy (NV) center in a nanodiamond to a fiber-based microcavity at room temperature. Investigating the very same NV center inside the cavity and in free space allows us to systematically explore a regime of phonon-assisted cavity feeding. Making use of the NV center's strongly broadened emission, we realize a widely tunable, narrow band single photon source. A master equation model well reproduces our experimental results and predicts a transition into a Purcell-enhanced emission regime at low temperatures.
authors.affiliation: Universität des Saarlandes, Fachrichtung 7.2 (Experimentalphysik), Campus E2.6, 66123 Saarbrücken, Germany.
authors.forename: Roland
authors.initials: R
authors.lastname: Albrecht
authors.affiliation: Universität des Saarlandes, Fachrichtung 7.2 (Experimentalphysik), Campus E2.6, 66123 Saarbrücken, Germany.
authors.forename: Alexander
authors.initials: A
authors.lastname: Bommer
authors.affiliation: Laboratoire Kastler Brossel, ENS/UPMC-Paris 6/CNRS, 24 rue Lhomond, 75005 Paris, France and Menlo Systems GmbH, 82152 Martinsried, Germany.
authors.forename: Christian
authors.initials: C
authors.lastname: Deutsch
authors.affiliation: Laboratoire Kastler Brossel, ENS/UPMC-Paris 6/CNRS, 24 rue Lhomond, 75005 Paris, France.
authors.forename: Jakob
authors.initials: J
authors.lastname: Reichel
authors.affiliation: Universität des Saarlandes, Fachrichtung 7.2 (Experimentalphysik), Campus E2.6, 66123 Saarbrücken, Germany.
authors.forename: Christoph
authors.initials: C
authors.lastname: Becher