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Author Vodolazov, D. Y.; Manova, N. N.; Korneeva, Y. P.; Korneev, A. A.
Title Timing jitter in NbN superconducting microstrip single-photon detector Type Journal Article
Year 2020 Publication Phys. Rev. Applied Abbreviated Journal Phys. Rev. Applied
Volume 14 Issue (up) 4 Pages 044041 (1 to 8)
Keywords NbN SSPD, SNSPD
Abstract We experimentally study timing jitter of single-photon detection by NbN superconducting strips with width w ranging from 190 nm to 3μm. We find that timing jitter of both narrow (190 nm) and micron-wide strips is about 40 ps at currents where internal detection efficiency η saturates and it is close to our instrumental jitter. We also calculate intrinsic timing jitter in wide strips using the modified time-dependent Ginzburg-Landau equation coupled with a two-temperature model. We find that with increasing width the intrinsic timing jitter increases and the effect is most considerable at currents where a rapid growth of η changes to saturation. We relate it with complicated vortex and antivortex dynamics, which depends on a photon’s absorption site across the strip and its width. The model also predicts that at current close to depairing current the intrinsic timing jitter of a wide strip could be about ℏ/kBTc (Tc is a critical temperature of superconductor), i.e., the same as for a narrow strip.
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ISSN 2331-7019 ISBN Medium
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Notes Approved no
Call Number Serial 1788
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Author Manova, N. N.; Korneeva, Yu. P.; Korneev, A. A.; Slysz, W.; Voronov, B. M.; Gol'tsman, G. N.
Title Superconducting NbN single-photon detector integrated with quarter-wave resonator Type Journal Article
Year 2011 Publication Tech. Phys. Lett. Abbreviated Journal Tech. Phys. Lett.
Volume 37 Issue (up) 5 Pages 469-471
Keywords SSPD, SNSPD
Abstract The spectral dependence of the quantum efficiency of superconducting NbN single-photon detectors integrated with quarter-wave resonators based on Si3N4, SiO2, and SiO layers has been studied.
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Call Number RPLAB @ gujma @ Serial 664
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Author Korneev, A. A.; Divochiy, A. V.; Vakhtomin, Yu. B.; Korneeva, Yu. P.; Larionov, P. A.; Manova, N. N.; Florya, I. N.; Trifonov, A. V.; Voronov, B. M.; Smirnov, K. V.; Semenov, A. V.; Chulkova, G. M.; Goltsman, G. N.
Title IR single-photon receiver based on ultrathin NbN superconducting film Type Journal Article
Year 2013 Publication Rus. J. Radio Electron. Abbreviated Journal Rus. J. Radio Electron.
Volume Issue (up) 5 Pages
Keywords SSPD, SNSPD
Abstract We present our recent results in research and development of superconducting single-photon detector (SSPD). We achieved the following performance improvement: first, we developed and characterized SSPD integrated in optical cavity and enabling its illumination from the face side, not through the substrate, second, we improved the quantum efficiency of the SSPD at around 3 μm wavelength by reduction of the strip width to 40 nm, and, finally, we improved the detection efficiency of the SSPD-based single-photon receiver system up to 20% at 1550 nm and extended its wavelength range beyond 1800 nm by the usage of the fluoride ZBLAN fibres.
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Language Russian Summary Language Original Title
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Notes 8 pages Approved no
Call Number RPLAB @ sasha @ korneevir Serial 1043
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Author Steudle, Gesine A.; Schietinger, Stefan; Höckel, David; Dorenbos, Sander N.; Zadeh, Iman E.; Zwiller, Valery; Benson, Oliver
Title Measuring the quantum nature of light with a single source and a single detector Type Journal Article
Year 2012 Publication Phys. Rev. A Abbreviated Journal
Volume 86 Issue (up) 5 Pages 053814
Keywords SSPD, SNSPD, saturation count rates, dead time, dynamic range
Abstract An elementary experiment in optics consists of a light source and a detector. Yet, if the source generates nonclassical correlations such an experiment is capable of unambiguously demonstrating the quantum nature of light. We realized such an experiment with a defect center in diamond and a superconducting detector. Previous experiments relied on more complex setups, such as the Hanbury Brown and Twiss configuration, where a beam splitter directs light to two photodetectors, creating the false impression that the beam splitter is a fundamentally required element. As an additional benefit, our results provide a simplification of the widely used photon-correlation techniques.
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Publisher American Physical Society Place of Publication Editor
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Notes Approved no
Call Number Serial 1089
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Author Korneev, Alexander; Golt'sman, Gregory; Pernice, Wolfram
Title Photonic integration meets single-photon detection Type Miscellaneous
Year 2015 Publication Laser Focus World Abbreviated Journal Laser Focus World
Volume 51 Issue (up) 5 Pages 47-50
Keywords optical waveguide SSPD, SNSPD
Abstract By embedding superconducting nanowire single-photon detectors (SNSPDs) in nanophotonic circuits, these waveguide-integrated detectors are a key building block for future on-chip quantum computing applications.
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Call Number RPLAB @ akorneev @ Serial 1126
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