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

被引：5
|
作者：
Li, Shulun [1 ,2 ,3 ]
Chen, Yao [1 ,4 ]
Shang, Xiangjun [1 ]
Yu, Ying [5 ]
Yang, Jiawei [5 ]
Huang, Junhui [1 ,2 ]
Su, Xiangbin [1 ]
Shen, Jiaxin [1 ,6 ,7 ]
Sun, Baoquan [1 ,2 ]
Ni, Haiqiao [1 ,2 ,3 ]
Su, Xingliang [8 ]
Wang, Kaiyou [1 ,2 ,3 ]
Niu, Zhichuan [1 ,2 ,3 ]
机构：
[1] Chinese Acad Sci, Inst Semicond, State Key Lab Superlattice & Microstruct, Beijing 100083, Peoples R China
[2] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China
[3] Beijing Acad Quantum Informat Sci, Beijing 100193, Peoples R China
[4] Northwest Univ, Inst Photon & Photon Technol, Xian 710127, Peoples R China
[5] Sun Yat Sen Univ, Sch Elect & Informat Technol, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Peoples R China
[6] Xidian Univ, Sch Microelect, Xian 710071, Peoples R China
[7] State Key Discipline Lab Wide Band Gap Semicond T, Xian 710071, Peoples R China
[8] Shanxi Univ, Coll Phys & Elect Engn, Lab Solid Quantum Mat Ctr, Taiyuan 030006, Peoples R China
来源：
NANOSCALE RESEARCH LETTERS | 2020年 / 15卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Single-photon source; Micropillar; Cavity mode; Weak coupling regime; RESONANCE;
D O I：
10.1186/s11671-020-03358-1
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
We proposed a precise calibration process of Al0.9Ga0.1As/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 similar to 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 showsg((2))(0)=0.070, and the estimated net count rate before the first objective lens reaches 1.6x10(7)counts/s under continuous wave excitation, indicating highly pure single-photon emission at high count rates.
引用
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页数：7
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