On-Demand Single Photons with High Extraction Efficiency and Near-Unity Indistinguishability from a Resonantly Driven Quantum Dot in a Micropillar.

By X. Ding, Yu He, Z. Duan, N. Gregersen, Ming-Cheng Chen, S. Unsleber, S. Maier, C. Schneider, M. Kamp, S. Höfling and 2 more. Physical Review Letters, 2016

791 citations recorded by the source corpus.

Scalable photonic quantum technologies require on-demand single-photon sources with simultaneously high levels of purity, indistinguishability, and efficiency. These key features, however, have only been demonstrated separately in previous experiments. Here, by s-shell pulsed resonant excitation of a Purcell-enhanced quantum dot-micropillar system, we deterministically generate resonance fluorescence single photons which, at π pulse excitation, have an extraction efficiency of 66%, single-photon purity of 99.1%, and photon indistinguishability of 98.5%. Such a single-photon source for the first time combines the features of high efficiency and near-perfect levels of purity and indistinguishabilty, and thus opens the way to multiphoton experiments with semiconductor quantum dots.

Subfields: Artificial Intelligence, Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/c89cbecf3d2c4fdfcb92c521bd92a9060d72f4ae

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Citations in the corpus

Integrated photonic quantum technologies (2019, background): “chip process. It allows on-chip measurements of non-classical light. Figure reproduced from: a, ref. [14] , AAAS; b, ref. [80], Macmillan Publishers Ltd; c, ref. [46], OSA; d, ref. [34], APS; e, ref. [53], APS; f, ref. [62], APS; g, ref. [26], Macmillan Publishers Ltd; h, ref. [118], MDPI; i, ref. [”
Semiconductor quantum dots: Technological progress and future challenges (2021, background): “Photon indistinguishability exceeding 98% has been achieved for eQD devices (160).”
Deterministic generation of all-photonic quantum repeaters from solid-state emitters (2016, background): “Several years ago, it was demonstrated that quantum dots can be tuned over a large spectral range, which allowed for photon interference coming from remote QDs [40], and very recently it was shown that such tuning can be successfully implemented in a QD-micropillar device [41], demonstrating indisti”
Quantum Electrodynamic Control of Matter: Cavity-Enhanced Ferroelectric Phase Transition (2020, background): “These systems have been suggested as platforms for realizing single-photon transistors [88–90] and sources [91–94], and can thus provide a promising route to enabling photonic quantum information processing [95–97].”