Article Dans Une Revue Optica Année : 2016

Scalable performance in solid-state single photon sources

G. Coppola
  • Fonction : Auteur
A.G. White
  • Fonction : Auteur

Résumé

The desiderata for an ideal photon source are high brightness, high single-photon purity, and high indistinguishability. Defining brightness at the first collection lens, these properties have been simultaneously demonstrated with solid-state sources; however, absolute source efficiencies remain close to the 1% level and indistinguishability has only been demonstrated for photons emitted consecutively on the few-nanoseconds scale. Here, we employ deterministic quantum dot-micropillar devices to demonstrate solid-state single-photon sources with scalable performances. In one device, an absolute brightness at the output of a single-mode fiber of 14% and purities of 97.1%–99.0% are demonstrated. When nonresontantly excited, it emits a long stream of photons that exhibit indistinguishability up to 70%—above the classical limit of 50%—even after 33 consecutively emitted photons with a 400 ns separation between them. Resonant excitation in other devices results in near-optimal indistinguishability values: 96% at short timescales, remaining at 88% in timescales as large as 463 ns after 39 emitted photons. The performance attained by our devices brings solid-state sources into a regime suitable for scalable implementations.

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hal-01386635 , version 1 (11-10-2024)

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Juan Loredo, N Zakaria, Niccolo Somashi, Carlos Anton, Lorenzo de Santis, et al.. Scalable performance in solid-state single photon sources. Optica, 2016, 3 (4), pp.433-440. ⟨10.1364/OPTICA.3.000433⟩. ⟨hal-01386635⟩

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