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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

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Hofling_2016_PRL_On_demand.pdf (610.5Kb)
Date
15/01/2016
Author
Ding, Xing
He, Yu
Duan, Z. -C.
Gregersen, Niels
Chen, M. -C.
Unsleber, S.
Maier, S.
Schneider, Christian
Kamp, Martin
Höfling, Sven
Lu, Chao-Yang
Pan, Jian-Wei
Keywords
QC Physics
TK Electrical engineering. Electronics Nuclear engineering
Physics and Astronomy(all)
NDAS
BDC
R2C
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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 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.
Citation
Ding , X , He , Y , Duan , Z -C , Gregersen , N , Chen , M -C , Unsleber , S , Maier , S , Schneider , C , Kamp , M , Höfling , S , Lu , C-Y & Pan , J-W 2016 , ' On-demand single photons with high extraction efficiency and near-unity indistinguishability from a resonantly driven quantum dot in a micropillar ' , Physical Review Letters , vol. 116 , no. 2 , 020401 . https://doi.org/10.1103/PhysRevLett.116.020401
Publication
Physical Review Letters
Status
Peer reviewed
DOI
https://doi.org/10.1103/PhysRevLett.116.020401
ISSN
0031-9007
Type
Journal article
Rights
© 2016 American Physical Society. This work is made available online in accordance with the publisher’s policies. This is the final published version of the work which was originally published at http://dx.doi.org/10.1103/PhysRevLett.116.020401
Description
This work was supported by the National Natural Science Foundation of China, the Chinese Academy of Sciences, and the National Fundamental Research Program. We acknowledge financial support by the State of Bavaria and the German Ministry of Education and Research (BMBF) within the projects Q.com-H and the Chist-era project SSQN. N. G. acknowledges support from the Danish Research Council for Technology and Production.
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  • University of St Andrews Research
URI
http://hdl.handle.net/10023/8095

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