Bright Polarized Single-Photon Source Based on a Linear Dipole

نویسندگان

چکیده

Semiconductor quantum dots in cavities are promising single-photon sources. Here, we present a path to deterministic operation, by harnessing the intrinsic linear dipole neutral dot via phonon-assisted excitation. This enables emission of fully polarized single photons, with measured degree polarization up 0.994 $\pm$ 0.007, and high population inversion -- 85\% as resonant We demonstrate source first lens brightness 0.50 $\pm $ 0.01, purity 0.954 0.001 indistinguishability 0.909 0.004.

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ژورنال

عنوان ژورنال: Physical Review Letters

سال: 2021

ISSN: ['1079-7114', '0031-9007', '1092-0145']

DOI: https://doi.org/10.1103/physrevlett.126.233601