title: Coherent interaction of light and single molecules in a dielectric nanoguide.
abstract: Many of the currently pursued experiments in quantum optics would greatly benefit from a strong interaction between light and matter. Here, we present a simple new scheme for the efficient coupling of single molecules and photons. A glass capillary with a diameter of 600 nm filled with an organic crystal tightly guides the excitation light and provides a maximum spontaneous emission coupling factor (β) of 18% for the dye molecules doped in the organic crystal. A combination of extinction, fluorescence excitation, and resonance fluorescence spectroscopy with microscopy provides high-resolution spatiospectral access to a very large number of single molecules in a linear geometry. We discuss strategies for exploring a range of quantum-optical phenomena, including polaritonic interactions in a mesoscopic ensemble of molecules mediated by a single mode of propagating photons.
authors.affiliation: Max Planck Institute for the Science of Light (MPL), D-91058 Erlangen, Germany and Leiden Institute of Physics, P.O. Box 9504, 2300 RA Leiden, The Netherlands.
authors.forename: Sanli
authors.initials: S
authors.lastname: Faez
authors.affiliation: Max Planck Institute for the Science of Light (MPL), D-91058 Erlangen, Germany.
authors.forename: Pierre
authors.initials: P
authors.lastname: Türschmann
authors.affiliation: Max Planck Institute for the Science of Light (MPL), D-91058 Erlangen, Germany.
authors.forename: Harald R
authors.initials: HR
authors.lastname: Haakh
authors.affiliation: Max Planck Institute for the Science of Light (MPL), D-91058 Erlangen, Germany and Department of Physics, Friedrich Alexander University of Erlangen-Nürnberg, D-91058 Erlangen, Germany.
authors.forename: Stephan
authors.initials: S
authors.lastname: Götzinger
authors.affiliation: Max Planck Institute for the Science of Light (MPL), D-91058 Erlangen, Germany and Department of Physics, Friedrich Alexander University of Erlangen-Nürnberg, D-91058 Erlangen, Germany.
authors.forename: Vahid
authors.initials: V
authors.lastname: Sandoghdar