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Intrinsic Quantum Efficiency and Electro-Thermal Model of a Superconducting Nanowire Single-Photon Detector

Semenov, Alexej and Haas, Philipp and Hübers, H.-W. and Ilin, Konstantin and Siegel, Michael and Kirste, Alexander and Drung, Dietmar and Schurig, Thomas and Engel, Andreas (2009) Intrinsic Quantum Efficiency and Electro-Thermal Model of a Superconducting Nanowire Single-Photon Detector. Journal of Modern Optics, 56 (2-3), pp. 345-351. Taylor & Francis. DOI: 10.1080/09500340802578589.

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Official URL: http://www.informaworld.com/smpp/title~content=g909146926~db=all?stem=2#messages

Abstract

Superconducting single-photon detectors from thin niobium nitride nanostrips exhibit a cut-off of the wavelength-independent quantum efficiency along with a moderate energy resolution in the near-infrared spectral range. Before the cut-off, the intrinsic quantum efficiency of the detector reaches 30% of the ultimate value, which is physically limited to the absorbance of the detector structure. The intrinsic quantum efficiency is most likely controlled by non-homogeneities of the niobium nitride films. We have developed an electro-thermal model of the detector response that allowed us to optimize the SQUID-based readout and to achieve, in the temperature range from 1 to 6 K, the photon count rate 3x10^7 s^-1 and a dark count rate less than 10^-4 s^-1.

Document Type:Article
Title:Intrinsic Quantum Efficiency and Electro-Thermal Model of a Superconducting Nanowire Single-Photon Detector
Authors:
AuthorsInstitution or Email of Authors
Semenov, AlexejUNSPECIFIED
Haas, PhilippUNSPECIFIED
Hübers, H.-W.UNSPECIFIED
Ilin, KonstantinUniversity of Karlsruhe
Siegel, MichaelUniversität Karlsruhe
Kirste, AlexanderPTB Berlin
Drung, DietmarPhysikalisch- Technische Bundesanstalt
Schurig, ThomasPTB Berlin
Engel, AndreasUniversity of Zürich
Date:January 2009
Journal or Publication Title:Journal of Modern Optics
Refereed publication:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:56
DOI:10.1080/09500340802578589
Page Range:pp. 345-351
Publisher:Taylor & Francis
Status:Published
Keywords:nanowire single-photon detectors; quantum efficiency; electro-thermal normal domain; SQUID readout
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Traffic Management
DLR - Research area:Transport
DLR - Program:V VM - Verkehrsmanagement
DLR - Research theme (Project):V - FAMOUS (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Terahertz and Infrared Sensors
Deposited By: Prof.Dr. Alexey Semenov
Deposited On:02 Nov 2009 13:59
Last Modified:26 Feb 2013 15:01

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