Reversible tuning of quantum dot emission to caesium D<sub>1</sub> line

ORAL

Abstract

We describe a new method for reversible and bi-directional in-situ precision tuning of the wavelength of single photons emitted by a quantum dot embedded in a semiconductor nanowire, using the deposition of inert gas. This method, which can be reversed by increasing the temperature or using focused laser to evaporate the deposited gas, has allowed us to match the D1 transition (∼895 nm) of cesium atom. We report the emitted photon characteristics including second-order correlation function g(2)(τ) and linewidth, as well as the lifetime of the quantum dot before and after the wavelength tuning. We also discuss our initial experiments studying interactions between the single photons and atomic ensembles.

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Presenters

  • Rubayet Al Maruf

    • University of Waterloo
    • Institute for Quantum Computing

Authors

  • Rubayet Al Maruf

    • University of Waterloo
    • Institute for Quantum Computing

  • Divya Bharadwaj

    • Institute of Quantum Computing
    • University of Waterloo

  • Paul Anderson

    • University of Waterloo

  • Sreesh Venuturumilli

    • University of Waterloo
    • Institute for Quantum Computing

  • Jiawei Qiu

    • University of Waterloo
    • Institute for Quantum Computing

  • Yujia Yuan

    • University of Waterloo

  • Behrooz Semnani

    • University of Waterloo
    • Institute for Quantum Computing

  • Sonell Malik

    • University of Waterloo

  • Mohd Zeeshan

    • University of Waterloo

  • Dan Dalacu

    • National Research Council Canada
    • National Research Council

  • Philip Poole

    • National Research Council Canada
    • National Research Council

  • Michael E Reimer

    • University of Waterloo

  • Michal Bajcsy

    • University of Waterloo
    • Institute for Quantum Computing