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Article Dans Une Revue Optics Letters Année : 2023

Brightness and purity of a room-temperature single-photon source in the blue-green range

Francis Granger
Gilles Nogues
Joel Cibert
David Ferrand

Résumé

Single-photon sources are crucial for developing secure telecommunications. However, most systems operate at cryogenic temperatures. Here, we discuss a promising solid-state system emitting single photons at room temperature in the blue-green range, allowing for quantum communications in free space and underwater. The active element is a core-shell ZnSe tapered nanowire embedding a single CdSe quantum dot grown by molecular beam epitaxy. A patterned substrate enables a thorough study of the one and same nanowire by different methods. Our source exhibits anti-bunching with g(2)(0) < 0.3 near the centre of the photoluminescence line and shows high brightness. This work paves the way for developing single-photon sources operating at non-cryogenic temperatures.
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Dates et versions

hal-04034474 , version 1 (17-03-2023)
hal-04034474 , version 2 (09-05-2023)

Identifiants

Citer

Francis Granger, Saransh Raj Gosain, Gilles Nogues, Edith Bellet-Amalric, Joel Cibert, et al.. Brightness and purity of a room-temperature single-photon source in the blue-green range. Optics Letters, 2023, 48 (15), pp.3833-3836. ⟨10.1364/OL.492039⟩. ⟨hal-04034474v2⟩
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