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Bright solid-state sources of indistinguishable single photons

Author

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  • O. Gazzano

    (Laboratoire de Photonique et de Nanostructures, CNRS, UPR20, Route de Nozay, Marcoussis 91460, France)

  • S. Michaelis de Vasconcellos

    (Laboratoire de Photonique et de Nanostructures, CNRS, UPR20, Route de Nozay, Marcoussis 91460, France)

  • C. Arnold

    (Laboratoire de Photonique et de Nanostructures, CNRS, UPR20, Route de Nozay, Marcoussis 91460, France)

  • A. Nowak

    (Laboratoire de Photonique et de Nanostructures, CNRS, UPR20, Route de Nozay, Marcoussis 91460, France)

  • E. Galopin

    (Laboratoire de Photonique et de Nanostructures, CNRS, UPR20, Route de Nozay, Marcoussis 91460, France)

  • I. Sagnes

    (Laboratoire de Photonique et de Nanostructures, CNRS, UPR20, Route de Nozay, Marcoussis 91460, France)

  • L. Lanco

    (Laboratoire de Photonique et de Nanostructures, CNRS, UPR20, Route de Nozay, Marcoussis 91460, France
    Université Paris Diderot, 4 rue Elsa Morante, 75013 Paris, France)

  • A. Lemaître

    (Laboratoire de Photonique et de Nanostructures, CNRS, UPR20, Route de Nozay, Marcoussis 91460, France)

  • P. Senellart

    (Laboratoire de Photonique et de Nanostructures, CNRS, UPR20, Route de Nozay, Marcoussis 91460, France)

Abstract

Bright sources of indistinguishable single photons are strongly needed for the scalability of quantum information processing. Semiconductor quantum dots are promising systems to build such sources. Several works demonstrated emission of indistinguishable photons while others proposed various approaches to efficiently collect them. Here we combine both properties and report on the fabrication of ultrabright sources of indistinguishable single photons, thanks to deterministic positioning of single quantum dots in well-designed pillar cavities. Brightness as high as 0.79±0.08 collected photon per pulse is demonstrated. The indistinguishability of the photons is investigated as a function of the source brightness and the excitation conditions. We show that a two-laser excitation scheme allows reducing the fluctuations of the quantum dot electrostatic environment under high pumping conditions. With this method, we obtain 82±10% indistinguishability for a brightness as large as 0.65±0.06 collected photon per pulse.

Suggested Citation

  • O. Gazzano & S. Michaelis de Vasconcellos & C. Arnold & A. Nowak & E. Galopin & I. Sagnes & L. Lanco & A. Lemaître & P. Senellart, 2013. "Bright solid-state sources of indistinguishable single photons," Nature Communications, Nature, vol. 4(1), pages 1-6, June.
    • Handle: RePEc:nat:natcom:v:4:y:2013:i:1:d:10.1038_ncomms2434
    DOI: 10.1038/ncomms2434
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    Cited by:

    1. Paweł Holewa & Daniel A. Vajner & Emilia Zięba-Ostój & Maja Wasiluk & Benedek Gaál & Aurimas Sakanas & Marek Burakowski & Paweł Mrowiński & Bartosz Krajnik & Meng Xiong & Kresten Yvind & Niels Gregers, 2024. "High-throughput quantum photonic devices emitting indistinguishable photons in the telecom C-band," Nature Communications, Nature, vol. 15(1), pages 1-9, December.

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