title: Photon emission and absorption of a single ion coupled to an optical-fiber cavity.
abstract: We present a light-matter interface which consists of a single 174Yb+ ion coupled to an optical fiber cavity. We observe that photons at 935 nm are mainly emitted into the cavity mode and that correlations between the polarization of the photon and the spin state of the ion are preserved despite the intrinsic coupling into a single-mode fiber. Complementary, when a faint coherent light field is injected into the cavity mode, we find enhanced and polarization dependent absorption by the ion.
authors.affiliation: Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom.
authors.forename: M
authors.initials: M
authors.lastname: Steiner
authors.affiliation: Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom and Physikalisches Institut, University of Bonn, Wegelerstrasse 8, 53115 Bonn, Germany.
authors.forename: H M
authors.initials: HM
authors.lastname: Meyer
authors.affiliation: Laboratoire Kastler Brossel, École Normale Supérieure, Université Pierre et Marie Curie-Paris 6, CNRS, 24 Rue Lhomond, 75005 Paris, France.
authors.forename: J
authors.initials: J
authors.lastname: Reichel
authors.affiliation: Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom and Physikalisches Institut, University of Bonn, Wegelerstrasse 8, 53115 Bonn, Germany.
authors.forename: M
authors.initials: M
authors.lastname: Köhl