High-efficiency photon-number-resolving detector for improving heralded single-photon sources

被引：10
作者：
Stasi, Lorenzo [1 ,2 ]
Caspar, Patrik [1 ]
Brydges, Tiff [1 ]
Zbinden, Hugo [1 ]
Bussieres, Felix [2 ]
Thew, Rob [1 ]
机构：
[1] Univ Geneva, Dept Appl Phys, CH-1211 Geneva, Switzerland
[2] ID Quant SA, CH-1227 Geneva, Switzerland
来源：
QUANTUM SCIENCE AND TECHNOLOGY | 2023年 / 8卷 / 04期
基金：
瑞士国家科学基金会; 欧盟地平线“2020”;
关键词：
SNSPD; photon number resolution; heralded single-photon sources; PAIRS;
D O I：
10.1088/2058-9565/ace54b
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Heralded single-photon sources (HSPS) intrinsically suffer from multiphoton emission, leading to a trade-off between the source's single-photon quality and the heralding rate. A solution to this problem is to use photon-number-resolving (PNR) detectors to filter out the heralding events where more than one photon pair is created. Here, we demonstrate an improvement of a HSPS by heralding photons using a high-efficiency parallel superconducting nanowire single-photon detector (P-SNSPD) with PNR power. Specifically, we show a reduction in the g(2)(0) (26.9 & PLUSMN;0.1)%
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页数：11
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