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Photonic Quantum Computing Spin Qubits Silicon Quantum Computing

Optical positioning of single quantum dots in micropillar with >65% extraction efficiency for on-demand quantum light sources

arXiv
Authors: Shun-Fa Liu, Yu-Ming Wei, Rong-Ling Su, Rong-Bin Su, Ben Ma, Ze-Sheng Chen, Hai-Qiao Ni, Zhi-Chuan Niu, Ying Yu, Yu-Jia Wei, Xue-hua Wang, Si-yuan Yu

Year

2016

Paper ID

41590

Status

Preprint

Abstract Read

~2 min

Abstract Words

81

Citations

N/A

Abstract

We report optical positioning single quantum dots (QDs) in planar cavity with an average position uncertainty <20 nm using an optimized two-color photoluminescence imaging technique. We create single-photon sources based on these QDs in determined micropillar cavities. The brightness of the QD fluorescence is greatly enhanced on resonance with the fundamental mode of the cavity, leading to an high extraction efficiency of 68%pm6% into a lens with numerical aperture of 0.65, and simultaneously exhibiting low multi-photon probability $g2(0=0.144\pm$0.012) at this collection efficiency.

Why This Paper Matters

  • This paper contributes to the Photonic Quantum Computing research area in the Quantum Articles archive.
  • It adds a 2016 reference point for readers tracking recent quantum research.
  • We report optical positioning single quantum dots (QDs) in planar cavity with an average position uncertainty

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1612.08180 [2] arXiv https://arxiv.org/abs/1612.08180 [3] Publisher https://arxiv.org/abs/1612.08180

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