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Showing 1–6 of 6 results
Advanced filters: Author: Clemens Spinnler Clear advanced filters

  • Radiative Auger is a process that leads to a red-shift of the optical emission of an atom or a charged solid-state quantum emitter. Here, the authors realize the inverse process by optically driving the radiative Auger transition of a short-lived electronic state in a semiconductor quantum dot.

    • Clemens Spinnler
    • Liang Zhai
    • Matthias C. Löbl
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-6

  • In a radiative Auger process, an excited electron relaxes by concomitant emission of a redshifted photon and energy transfer to another electron. Measuring radiative Auger processes in a quantum dot with single-photon resolution enables determination of the energy of single-electron levels as well as their lifetimes.

    • Matthias C. Löbl
    • Clemens Spinnler
    • Richard J. Warburton
    Research
    Nature Nanotechnology
    Volume: 15, P: 558-562

  • GaAs quantum dots emitting at the near-red part of the spectrum usually suffers from excess charge-noise. With a careful design of a n-i-p-diode structure hosting GaAs quantum dots, the authors demonstrate ultralow-noise behaviour and high-fidelity spin initialisation close to rubidium wavelengths.

    • Liang Zhai
    • Matthias C. Löbl
    • Richard J. Warburton
    ResearchOpen Access
    Nature Communications
    Volume: 11, P: 1-8

  • Droplet GaAs quantum dots are interconnectable sources of single photons. Near-identical photons from remote GaAs quantum dots now show an interference visibility of 93% with quantum entanglement between the separate photon streams from the two sources.

    • Liang Zhai
    • Giang N. Nguyen
    • Richard J. Warburton
    Research
    Nature Nanotechnology
    Volume: 17, P: 829-833