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Timing jitter in photon detection by straight superconducting nanowires: Effect of magnetic field and photon flux

Sidorova, Mariia and Semenov, Alexey and Huebers, H.-W. and Kuzmin, Artem and Doerner, Stefan and Ilin, Konstantin and Siegel, M. and Charaev, Ilya and Vodolazov, Denis (2018) Timing jitter in photon detection by straight superconducting nanowires: Effect of magnetic field and photon flux. Physical Review B, 98, p. 134504. American Physical Society. doi: 10.1103/PhysRevB.98.134504. ISSN 2469-9950.

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We studied the effects of the external magnetic field and photon flux on timing jitter in photon detection by straight superconducting NbN nanowires. At two wavelengths 800 and 1560 nm, statistical distribution in the appearance times of photon counts exhibits Gaussian shape at small times and an exponential tail at large times. The characteristic exponential time is larger for photons with smaller energy and increases with external magnetic field while variations in the Gaussian part of the distribution are less pronounced. Increasing photon flux drives the nanowire from the discrete quantum detection regime to the uniform bolometric regime that averages out fluctuations of the total number of nonequilibrium electrons created by the photon and drastically reduces jitter. The difference between standard deviations of Gaussian parts of distributions for these two regimes provides the measure for the strength of electron-number fluctuations; it increases with the photon energy. We show that the two-dimensional hot-spot detection model explains qualitatively the effect of magnetic field.

Item URL in elib:https://elib.dlr.de/141286/
Document Type:Article
Title:Timing jitter in photon detection by straight superconducting nanowires: Effect of magnetic field and photon flux
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Kuzmin, Artemuniversity of karlsruheUNSPECIFIEDUNSPECIFIED
Doerner, Stefanuniversity of karlsruheUNSPECIFIEDUNSPECIFIED
Ilin, Konstantinuniversity of karlsruheUNSPECIFIEDUNSPECIFIED
Siegel, M.Institute of Micro- and Nanoelectronic Systems, University of KarlsruheUNSPECIFIEDUNSPECIFIED
Charaev, Ilyauniversity of karlsruheUNSPECIFIEDUNSPECIFIED
Vodolazov, DenisInstitute for Physics of Microstructures, Nizhny Novgorod, RussiaUNSPECIFIEDUNSPECIFIED
Date:11 October 2018
Journal or Publication Title:Physical Review B
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:p. 134504
Publisher:American Physical Society
Keywords:Superconducting nanowires, jitter
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space System Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Space System Technology
DLR - Research theme (Project):R - Detectors for optical instruments (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Optical Sensor Systems > Terahertz and Laser Spectroscopy
Deposited By: Semenov, Prof.Dr. Alexey
Deposited On:15 Mar 2021 14:10
Last Modified:22 Nov 2023 07:47

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