Boost of single-photon emission by perfect coupling of InAs/GaAs quantum dot and micropillar cavity mode

Shulun Li; Yao Chen; Xiangjun Shang; Ying Yu; Jiawei Yang; Junhui Huang; Xiangbin Su; Jiaxin Shen; Baoquan Sun; Haiqiao Ni; Xingliang Su; Kaiyou Wang; Zhichuan Niu

doi:10.1186/s11671-020-03358-1

Nanoscale Research Letters (Jul 2020)

Boost of single-photon emission by perfect coupling of InAs/GaAs quantum dot and micropillar cavity mode

Shulun Li,
Yao Chen,
Xiangjun Shang,
Ying Yu,
Jiawei Yang,
Junhui Huang,
Xiangbin Su,
Jiaxin Shen,
Baoquan Sun,
Haiqiao Ni,
Xingliang Su,
Kaiyou Wang,
Zhichuan Niu

Affiliations

Shulun Li: State Key Laboratory for Superlattice and Microstructures, Institute of Semiconductors,Chinese Academy of Sciences
Yao Chen: State Key Laboratory for Superlattice and Microstructures, Institute of Semiconductors,Chinese Academy of Sciences
Xiangjun Shang: State Key Laboratory for Superlattice and Microstructures, Institute of Semiconductors,Chinese Academy of Sciences
Ying Yu: State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology, Sun Yat-sen University
Jiawei Yang: State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology, Sun Yat-sen University
Junhui Huang: State Key Laboratory for Superlattice and Microstructures, Institute of Semiconductors,Chinese Academy of Sciences
Xiangbin Su: State Key Laboratory for Superlattice and Microstructures, Institute of Semiconductors,Chinese Academy of Sciences
Jiaxin Shen: State Key Laboratory for Superlattice and Microstructures, Institute of Semiconductors,Chinese Academy of Sciences
Baoquan Sun: State Key Laboratory for Superlattice and Microstructures, Institute of Semiconductors,Chinese Academy of Sciences
Haiqiao Ni: State Key Laboratory for Superlattice and Microstructures, Institute of Semiconductors,Chinese Academy of Sciences
Xingliang Su: Laboratory of Solid Quantum Material Center, College of Physics and Electronic Engineering, Shanxi University
Kaiyou Wang: State Key Laboratory for Superlattice and Microstructures, Institute of Semiconductors,Chinese Academy of Sciences
Zhichuan Niu: State Key Laboratory for Superlattice and Microstructures, Institute of Semiconductors,Chinese Academy of Sciences

DOI: https://doi.org/10.1186/s11671-020-03358-1
Journal volume & issue: Vol. 15, no. 1
pp. 1 – 7

Abstract

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Abstract We proposed a precise calibration process of Al 0.9 Ga 0.1As/GaAs DBR micropillar cavity to match the single InAs/GaAs quantum dot (QD) exciton emission and achieve cavity mode resonance and a great enhancement of QD photoluminescence (PL) intensity. Light-matter interaction of single QD in DBR micropillar cavity (Q ∼ 3800) under weak coupling regime was investigated by temperature-tuned PL spectra; a pronounced enhancement (14.6-fold) of QD exciton emission was observed on resonance. The second-order autocorrelation measurement shows g (2)(0)=0.070, and the estimated net count rate before the first objective lens reaches 1.6×107 counts/s under continuous wave excitation, indicating highly pure single-photon emission at high count rates.

Published in Nanoscale Research Letters

ISSN: 1931-7573 (Print); 1556-276X (Online)
Publisher: SpringerOpen
Country of publisher: United Kingdom
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials
Website: https://www.springer.com/journal/11671

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