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

Xing Ding, Yu He, Z.-C. Duan, Niels Gregersen, M.-C. Chen, S. Unsleber, Sebastian Maier, Christian Schneider, Martin Kamp, Sven Höfling, Chao-Yang Lu, Jian-Wei Pan

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Abstract

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 Purcellenhanced 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.
Original languageEnglish
Article number020401
JournalPhysical Review Letters
Volume116
Number of pages6
ISSN0031-9007
DOIs
Publication statusPublished - 2016

Cite this

Ding, Xing ; He, Yu ; Duan, Z.-C. ; Gregersen, Niels ; Chen, M.-C. ; Unsleber, S. ; Maier, Sebastian ; Schneider, Christian ; Kamp, Martin ; Höfling, Sven ; Lu, Chao-Yang ; Pan, Jian-Wei. / On-Demand Single Photons with High Extraction Efficiency and Near-Unity Indistinguishability from a Resonantly Driven Quantum Dot in a Micropillar. In: Physical Review Letters. 2016 ; Vol. 116.
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abstract = "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 Purcellenhanced 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.",
author = "Xing Ding and Yu He and Z.-C. Duan and Niels Gregersen and M.-C. Chen and S. Unsleber and Sebastian Maier and Christian Schneider and Martin Kamp and Sven H{\"o}fling and Chao-Yang Lu and Jian-Wei Pan",
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On-Demand Single Photons with High Extraction Efficiency and Near-Unity Indistinguishability from a Resonantly Driven Quantum Dot in a Micropillar. / Ding, Xing ; He, Yu; Duan, Z.-C.; Gregersen, Niels; Chen, M.-C.; Unsleber, S.; Maier, Sebastian; Schneider, Christian; Kamp, Martin; Höfling, Sven; Lu, Chao-Yang; Pan, Jian-Wei.

In: Physical Review Letters, Vol. 116, 020401, 2016.

Research output: Contribution to journalJournal articleResearchpeer-review

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AU - Ding, Xing

AU - He, Yu

AU - Duan, Z.-C.

AU - Gregersen, Niels

AU - Chen, M.-C.

AU - Unsleber, S.

AU - Maier, Sebastian

AU - Schneider, Christian

AU - Kamp, Martin

AU - Höfling, Sven

AU - Lu, Chao-Yang

AU - Pan, Jian-Wei

PY - 2016

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N2 - 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 Purcellenhanced 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.

AB - 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 Purcellenhanced 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.

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