Highly pure single photon emission from spectrally uniform surface-curvature directed mesa top single quantum dot ordered array

Realizing ordered and spectrally uniform single photon source arrays integrable on-chip with light manipulating elements in a scalable architecture lies at the core of building monolithic quantum optical circuits (QOCs). We demonstrate here a spatially ordered 5 × 8 array of surface-curvature driven...

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Bibliographic Details
Published in:Applied physics letters 2019-02, Vol.114 (7)
Main Authors: Zhang, Jiefei, Chattaraj, Swarnabha, Lu, Siyuan, Madhukar, Anupam
Format: Article
Language:English
Subjects:
Applied physics
Arrays
Curvature
Figure of merit
Fine structure
Gallium arsenide
Indium gallium arsenides
Photoluminescence
Photon emission
Polarization
Quantum dots
Quantum theory
Spectra
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Summary:Realizing ordered and spectrally uniform single photon source arrays integrable on-chip with light manipulating elements in a scalable architecture lies at the core of building monolithic quantum optical circuits (QOCs). We demonstrate here a spatially ordered 5 × 8 array of surface-curvature driven mesa-top GaAs(001)/InGaAs/GaAs single quantum dots (MTSQDs) that exhibit highly pure (∼99%) single photon emission as deduced from the measured g(2)(0) < 0.02 at 9.4 K. Polarization-independent and polarization-resolved high resolution photoluminescence measurements show that these ordered and spectrally uniform QDs have neutral exciton emission with an intrinsic linewidth ∼ 10 μeV and a fine structure splitting
ISSN:0003-6951
1077-3118
DOI:10.1063/1.5080746