title: On-Chip Generation, Routing, and Detection of Resonance Fluorescence.
abstract: Quantum optical circuits can be used to generate, manipulate, and exploit nonclassical states of light to push semiconductor based photonic information technologies to the quantum limit. Here, we report the on-chip generation of quantum light from individual, resonantly excited self-assembled InGaAs quantum dots, efficient routing over length scales ≥1 mm via GaAs ridge waveguides, and in situ detection using evanescently coupled integrated NbN superconducting single photon detectors fabricated on the same chip. By temporally filtering the time-resolved luminescence signal stemming from single quantum dots we use the quantum optical circuit to perform time-resolved excitation spectroscopy on single dots and demonstrate resonance fluorescence with a line-width of 10 ± 1 μeV; key elements needed for the use of single photons in prototypical quantum photonic circuits.
authors.affiliation: †Walter Schottky Institut und Physik Department, Technische Universität München, Am Coulombwall 4, 85748 Garching, Germany.
authors.forename: G
authors.initials: G
authors.lastname: Reithmaier
authors.affiliation: †Walter Schottky Institut und Physik Department, Technische Universität München, Am Coulombwall 4, 85748 Garching, Germany.
authors.forename: M
authors.initials: M
authors.lastname: Kaniber
authors.affiliation: †Walter Schottky Institut und Physik Department, Technische Universität München, Am Coulombwall 4, 85748 Garching, Germany.
authors.forename: F
authors.initials: F
authors.lastname: Flassig
authors.affiliation: †Walter Schottky Institut und Physik Department, Technische Universität München, Am Coulombwall 4, 85748 Garching, Germany.
authors.forename: S
authors.initials: S
authors.lastname: Lichtmannecker
authors.affiliation: †Walter Schottky Institut und Physik Department, Technische Universität München, Am Coulombwall 4, 85748 Garching, Germany.|§E. L. Ginzton Laboratory, Stanford University, Stanford, California 94305, United States.
authors.forename: K
authors.initials: K
authors.lastname: Müller
authors.affiliation: †Walter Schottky Institut und Physik Department, Technische Universität München, Am Coulombwall 4, 85748 Garching, Germany.
authors.forename: A
authors.initials: A
authors.lastname: Andrejew
authors.affiliation: §E. L. Ginzton Laboratory, Stanford University, Stanford, California 94305, United States.
authors.forename: J
authors.initials: J
authors.lastname: Vučković
authors.affiliation: ‡Walther-Meißner-Institut, Bayerische Akademie der Wissenschaften und Physik-Department, Technische Universität München, 85748 Garching, Germany.|∥Nanosystems Initiative Munich (NIM), Schellingstraße 4, 80799 München, Germany.
authors.forename: R
authors.initials: R
authors.lastname: Gross
authors.affiliation: †Walter Schottky Institut und Physik Department, Technische Universität München, Am Coulombwall 4, 85748 Garching, Germany.|∥Nanosystems Initiative Munich (NIM), Schellingstraße 4, 80799 München, Germany.
authors.forename: J J
authors.initials: JJ
authors.lastname: Finley
keywords: Integrated quantum optics; nano photonics; quantum dots; resonance fluorescence; superconducting single photon detectors