Single-Photon Source for the Red Spectral Range Based on a Nanoantenna with InAs/AlGaAs Quantum Dots

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发表日期：

2024年6月1日

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A. I. Veretennikov,
M. V. Rakhlin,
A. I. Galimov,
D. R. Kazanov,
G. V. Klimko,
I. V. Sedova,
M. M. Kulagina,
Yu. M. Zadiranov,
Yu. A. Guseva,
A. A. Toropov

摘要

We optimize the geometric parameters of the single-photon source operated in the red spectral range, which is based on a photonic nanoantenna with InAs/AlGaAs quantum dots. This made it possible to determine the range of the transverse dimensions of the cylindrical nanoantenna, within which the maximum efficiency of radiation extraction into the numerical aperture NA = 0.42 is achieved. An increase in the extraction efficiency as compared to a planar structure was demonstrated for the optimized nanostructure. The statistics of single photon correlations under optical pumping with participation of acoustic phonons is studied. The value of the zero-delay second-order correlation function g⁽²⁾(0) was 0.065.