Demultiplexed single-photon source with a quantum dot coupled to microresonator

被引：10

作者：

Rakhlin, M. V. ^{[1
]}

Galimov, A. I. ^{[1
]}

Dyakonov, I. V. ^{[2
]}

Skryabin, N. N. ^{[2
]}

Klimko, G. V. ^{[1
]}

Kulagina, M. M. ^{[1
]}

Zadiranov, Yu. M. ^{[1
]}

Sorokin, S. V. ^{[1
]}

Sedova, I. V. ^{[1
]}

Guseva, Yu. A. ^{[1
]}

Berezina, D. S. ^{[1
]}

Serov, Yu. M. ^{[1
]}

Maleev, N. A. ^{[1
]}

Kuzmenkov, A. G. ^{[1
]}

Troshkov, S. I. ^{[1
]}

Taratorin, K. V. ^{[2
]}

Skalkin, A. K. ^{[2
]}

Straupe, S. S. ^{[2
,3
]}

Kulik, S. P. ^{[2
,4
]}

Shubina, T. V. ^{[1
]}

Toropov, A. A. ^{[1
]}

机构：

[1] Ioffe Inst, St Petersburg 194021, Russia

[2] Moscow MV Lomonosov State Univ, Quantum Technol Ctr, Moscow 119991, Russia

[3] Russian Quantum Ctr, Moscow 143025, Russia

[4] South Ural State Univ, Natl Res Univ, Chelyabinsk 454080, Russia

来源：

JOURNAL OF LUMINESCENCE | 2023年 / 253卷

基金：

俄罗斯科学基金会;

关键词：

Semiconductors; Quantum dot; Exciton; Single-photon emission; Microcavity; Multiphoton generation circuit; SPONTANEOUS EMISSION;

D O I：

10.1016/j.jlumin.2022.119496

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The characteristics of a single-photon emitter based on a semiconductor quantum dot, such as their indistin-guishability and brightness, depend on the stability of the recombination channel, which can switch spontane-ously between exciton and trion. We show that dominant recombination through neutral exciton states can be achieved by careful control of the doping profile near an epitaxial InAs/GaAs quantum dot placed in a columnar microcavity with distributed Bragg reflectors. The Hong-Ou-Mandel experiments carried out in the fabricated device demonstrate the degree of indistinguishability of 91% of successively emitted single photons within 242 ns at an efficiency of 10% inside a single-mode optical fiber. The achieved brightness made it possible to implement spatio-temporal demultiplexing of photons in six independent spatial modes with an in-fiber gener-ation frequency of more than 0.1 Hz.

引用

页数：5

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