Single-Photon Emission from GaAs Quantum Dots Embedded in Nanowires

A highly efficient single-photon source based on a semiconductor quantum dot （QD） is a promising candidate in quantum information processing. We report a single-photon source based on self-assembled GaAs QDs in nanowires with an extraction efficiency of 14%. The second-order correlation function g（2...

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Published inChinese physics letters Vol. 32; no. 7; pp. 198 - 201
Main Author 杨爽 窦秀明 喻颖 倪海桥 牛智川 江德生 孙宝权
Format Journal Article
LanguageEnglish
Published 01.07.2015
Subjects
Collection
Correlation
Emission
Gallium arsenide
Nanowires
Polarization
Quantum dots
Semiconductors
二阶相关函数
半导体量子点
单光子发射
单光子源
嵌入
砷化镓
纳米线
量子信息处理
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ISSN0256-307X
1741-3540
DOI10.1088/0256-307X/32/7/077804

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Summary:A highly efficient single-photon source based on a semiconductor quantum dot （QD） is a promising candidate in quantum information processing. We report a single-photon source based on self-assembled GaAs QDs in nanowires with an extraction efficiency of 14%. The second-order correlation function g（2） （0） at saturate excitation power is estimated to be 0.28. The measured polarization of QD emission depends on the geometric relations between the directions of PL collection and the long axis of nanowires.
Bibliography:11-1959/O4
A highly efficient single-photon source based on a semiconductor quantum dot （QD） is a promising candidate in quantum information processing. We report a single-photon source based on self-assembled GaAs QDs in nanowires with an extraction efficiency of 14%. The second-order correlation function g（2） （0） at saturate excitation power is estimated to be 0.28. The measured polarization of QD emission depends on the geometric relations between the directions of PL collection and the long axis of nanowires.
YANG Shuang, DOU Xiu-Ming, YU Ying, NI Hai-Qiao, Mu Zhi-Chuan, JIANG De-Sheng, SUN Bao-Quan（ State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083）
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ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/32/7/077804