A deterministic quantum dot micropillar single photon source with >65% extraction efficiency based on fluorescence imaging method

Shunfa Liu, Yuming Wei, Rongling Su, Rongbin Su, Ben Ma, Zesheng Chen, Haiqiao Ni, Zhichuan Niu, Ying Yu*, Yujia Wei, Xuehua Wang, Siyuan Yu

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

11 Citations (Scopus)
206 Downloads (Pure)

Abstract

We report optical positioning of single quantum dots (QDs) in planar distributed Bragg reflector (DBR) cavity with an average position uncertainty of ≈20 nm using an optimized photoluminescence imaging method. 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% ± 6% into a lens with numerical aperture of 0.65, and simultaneously exhibiting low multi-photon probability (g(2)(0) = 0.144 ± 0.012) at this collection efficiency.

Original languageEnglish
Article number13986
JournalScientific Reports
Volume7
Issue number1
Early online date25 Oct 2017
DOIs
Publication statusPublished - 1 Dec 2017

Fingerprint Dive into the research topics of 'A deterministic quantum dot micropillar single photon source with >65% extraction efficiency based on fluorescence imaging method'. Together they form a unique fingerprint.

Cite this