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Converting single photons from an InAs/GaAs quantum dot into the ultraviolet: preservation of second-order correlations

Abstract : Wavelength conversion at the single-photon level is required to forge a quantum network from distinct quantum devices. Such devices include solid-state emitters of single or entangled photons, as well as network nodes based on atoms or ions. Here we demonstrate the conversion of single photons emitted from a III-V semiconductor quantum dot at 853nm via sum frequency conversion to the wavelength of the strong transition of Yb ions at 370nm. We measure the second-order correlation function of both the unconverted and of the converted photon and show that the single-photon character of the quantum dot emission is preserved during the conversion process.
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https://hal.archives-ouvertes.fr/hal-03514962
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Submitted on : Thursday, January 6, 2022 - 2:55:22 PM
Last modification on : Thursday, April 7, 2022 - 2:43:06 PM

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Anica Hamer, David Fricker, Marcel Hohn, Paola Atkinson, Mihail Lepsa, et al.. Converting single photons from an InAs/GaAs quantum dot into the ultraviolet: preservation of second-order correlations. Opt.Lett., 2022, 47 (7), pp.1778. ⟨10.1364/OL.451975⟩. ⟨hal-03514962⟩

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