@article{Sempere-Llagostera:2022:10.1364/oe.450172,
author = {Sempere-Llagostera, S and Thekkadath, G and Patel, R and Kolthammer, WS and Walmsley, I},
doi = {10.1364/oe.450172},
journal = {Optics Express},
pages = {3138--3147},
title = {Reducing $g^((2))(0)$ of a parametric down-conversion source via photon-number resolution with superconducting nanowire detectors},
url = {http://dx.doi.org/10.1364/oe.450172},
volume = {30},
year = {2022}
}

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TY  - JOUR
AB  - Multiphoton contributions pose a significant challenge for the realisation of heralded single-photon sources (HSPS) based on nonlinear processes. In this work, we improve the quality of single photons generated in this way by harnessing the photon-number resolving (PNR) capabilities of commercial superconducting nanowire single-photon detectors (SNSPDs). We report a 13 ± 0.4% reduction of g(2)(τ = 0), even with a collection efficiency in the photon source of only 29.6%. Our work demonstrates the first application of the PNR capabilities of SNSPDs and shows improvement in the quality of an HSPS with widely available technology.
AU  - Sempere-Llagostera,S
AU  - Thekkadath,G
AU  - Patel,R
AU  - Kolthammer,WS
AU  - Walmsley,I
DO  - 10.1364/oe.450172
EP  - 3147
PY  - 2022///
SN  - 1094-4087
SP  - 3138
TI  - Reducing $g^{(2)}(0)$ of a parametric down-conversion source via photon-number resolution with superconducting nanowire detectors
T2  - Optics Express
UR  - http://dx.doi.org/10.1364/oe.450172
UR  - https://opg.optica.org/oe/fulltext.cfm?uri=oe-30-2-3138&id=468509
UR  - http://hdl.handle.net/10044/1/93944
VL  - 30
ER  - 

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