On-Chip Generation, Routing, and Detection of Resonance Fluorescence

G. Reithmaier, M. Kaniber, F. Flassig, S. Lichtmannecker, K. Müller, A. Andrejew, J. Vučković, R. Gross, J. J. Finley

Research output: Contribution to journalArticlepeer-review

82 Scopus citations

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 ∼eV; key elements needed for the use of single photons in prototypical quantum photonic circuits.

Original languageEnglish
Pages (from-to)5208-5213
Number of pages6
JournalNano Letters
Volume15
Issue number8
DOIs
StatePublished - 12 Aug 2015

Keywords

  • Integrated quantum optics
  • nano photonics
  • quantum dots
  • resonance fluorescence
  • superconducting single photon detectors

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