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QUANTUM OPTICS

The quest for a perfect single-photon source

A quantum-dot-based single-photon source with a polarized single-photon efficiency of 60% and an indistinguishability of 0.975 is demonstrated by introducing a small asymmetry in a photonic cavity structure.

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Fig. 1: Schematic views of an elliptical micropillar cavity and a bullseye cavity.

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Correspondence to Michael E. Reimer.

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Reimer, M.E., Cher, C. The quest for a perfect single-photon source. Nat. Photonics 13, 734–736 (2019). https://doi.org/10.1038/s41566-019-0544-x

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  • DOI: https://doi.org/10.1038/s41566-019-0544-x

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