Near-transform-limited single photons from an efficient solid-state quantum emitter
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By pulsed s-shell resonant excitation of a single quantum dot-micropillar system, we generate long streams of 1000 near-transform-limited single photons with high mutual indistinguishability. The Hong-Ou-Mandel interference of two photons is measured as a function of their emission time separation varying from 13 ns to 14.7 μs, where the visibility slightly drops from 95.9(2)% to a plateau of 92.1(5)% through a slow dephasing process occurring at a time scale of 0.7 μs. A temporal and spectral analysis reveals the pulsed resonance fluorescence single photons are close to the transform limit, which are readily useful for multiphoton entanglement and interferometry experiments.
Wang , H , Duan , Z-C , Li , Y-H , Chen , S , Li , J-P , He , Y-M , Chen , M-C , He , Y , Ding , X , Peng , C-Z , Schneider , C , Kamp , M , Höfling , S , Lu , C-Y & Pan , J-W 2016 , ' Near-transform-limited single photons from an efficient solid-state quantum emitter ' Physical Review Letters , vol 116 , no. 21 , 213601 . DOI: 10.1103/PhysRevLett.116.213601
Physical Review Letters
© 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.116.213601
DescriptionThis work was supported by the National Natural Science Foundation of China, the Chinese Academy of Sciences, the National Fundamental Research Program, and the State of Bavaria.
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