Room temperature triggered single-photon source in the near infrared
E. Wu (LPQM), James Rabeau, G\'erard Roger (LCFIO), Fran\c{c}ois, Treussart (LPQM), Heping Zeng, Philippe Grangier (LCFIO), Steven Prawer,, Jean-Fran\c{c}ois Roch (LPQM)
TL;DR
This paper demonstrates a room-temperature, solid-state single-photon source in the near infrared using a nickel-nitrogen NE8 colour centre in diamond nanocrystals, advancing quantum communication technologies.
Contribution
It presents the first stable, room-temperature, near-infrared single-photon source based on NE8 centres in diamond nanocrystals for practical quantum applications.
Findings
Stable single-photon emission observed under continuous and pulsed excitation
Near-infrared emission suitable for quantum key distribution
Room temperature operation achieved
Abstract
We report the realization of a solid-state triggered single-photon source with narrow emission in the near infrared at room temperature. It is based on the photoluminescence of a single nickel-nitrogen NE8 colour centre in a chemical vapour deposited diamond nanocrystal. Stable single-photon emission has been observed in the photoluminescence under both continuous-wave and pulsed excitations. The realization of this source represents a step forward in the application of diamond-based single-photon sources to Quantum Key Distribution (QKD) under practical operating conditions.
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