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Korneev, A.; Korneeva, Y.; Florya, I.; Voronov, B.; Goltsman, G. |
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Title |
Spectral sensitivity of narrow strip NbN superconducting single-photon detector |
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Conference Article |
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Year |
2011 |
Publication |
Proc. SPIE |
Abbreviated Journal |
Proc. SPIE |
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Volume  |
8072 |
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Pages |
80720G (1 to 9) |
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Keywords |
NbN SSPD, SNSPD |
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Abstract |
Superconducting single-photon detector (SSPD) is patterned from 4-nm-thick NbN film deposited on sapphire substrate as a 100-nm-wide strip. Due to its high detection efficiency, low dark counts, and picosecond timing jitter SSPD has become a competitor to the InGaAs avalanche photodiodes at 1550 nm and longer wavelengths. Although the SSPD is operated at liquid helium temperature its efficient single-mode fibre coupling enabled its usage in many applications ranging from single-photon sources research to quantum cryptography. In our strive to increase the detection efficiency at 1550 nm and longer wavelengths we developed and fabricated SSPD with the strip almost twice narrower compared to the standard 100 nm. To increase the voltage response of the device we utilized cascade switching mechanism: we connected 50-nm-wide and 10-μm-long strips in parallel covering the area of 10 μmx10 μm. Absorption of a photon breaks the superconductivity in a strip leading to the bias current redistribution between other strips followed their cascade switching. As the total current of all the strips about is 1 mA by the order of magnitude the response voltage of such an SSPD is several times higher compared to the traditional meander-shaped SSPDs. In middle infrared (about 3 μm wavelength) these devices have the detection efficiency several times higher compared to the traditional SSPDs. |
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SPIE |
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Fiurásek, J.; Prochazka, I. |
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Photon Counting Applications, Quantum Optics, and Quantum Information Transfer and Processing III |
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1387 |
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Author |
Goltsman, G. N. |
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Title |
Ultrafast nanowire superconducting single-photon detector with photon number resolving capability |
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Conference Article |
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Year |
2009 |
Publication |
Proc. SPIE |
Abbreviated Journal |
Proc. SPIE |
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Volume |
7236 |
Issue |
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Pages |
72360D (1 to 11) |
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Keywords |
PNR NbN SSPD, SNSPD, superconducting single-photon detectors, photon number resolving detectors, ultrathin NbN films |
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Abstract |
In this paper we present a review of the state-of-the-art superconducting single-photon detector (SSPD), its characterization and applications. We also present here the next step in the development of SSPD, i.e. photon-number resolving SSPD which simultaneously features GHz counting rate. We have demonstrated resolution up to 4 photons with quantum efficiency of 2.5% and 300 ps response pulse duration providing very short dead time. |
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SPIE |
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Arakawa, Y.; Sasaki, M.; Sotobayashi, H. |
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1403 |
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Korneev, A.; Divochiy, A.; Marsili, F.; Bitauld, D.; Fiore, A.; Seleznev, V.; Kaurova, N.; Tarkhov, M.; Minaeva, O.; Chulkova, G.; Smirnov, K.; Gaggero, A.; Leoni, R.; Mattioli, F.; Lagoudakis, K.; Benkhaoul, M.; Levy, F.; Goltsman, G. |
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Title |
Superconducting photon number resolving counter for near infrared applications |
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Conference Article |
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2008 |
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Proc. SPIE |
Abbreviated Journal |
Proc. SPIE |
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Volume |
7138 |
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713828 (1 to 5) |
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Keywords |
PNR SSPD; SNSPD; Nanowire superconducting single-photon detector, ultrathin NbN film, infrared |
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We present a novel concept of photon number resolving detector based on 120-nm-wide superconducting stripes made of 4-nm-thick NbN film and connected in parallel (PNR-SSPD). The detector consisting of 5 strips demonstrate a capability to resolve up to 4 photons absorbed simultaneously with the single-photon quantum efficiency of 2.5% and negligibly low dark count rate. |
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Spie |
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Tománek, P.; Senderáková, D.; Hrabovský, M. |
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10.1117/12.818079 |
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1241 |
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Smirnov, K. V.; Vachtomin, Y. B.; Ozhegov, R. V.; Pentin, I. V.; Slivinskaya, E. V.; Korneev, A. A.; Goltsman, G. N. |
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Title |
Fiber coupled single photon receivers based on superconducting detectors for quantum communications and quantum cryptography |
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Conference Article |
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Year |
2008 |
Publication |
Proc. SPIE |
Abbreviated Journal |
Proc. SPIE |
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Volume |
7138 |
Issue |
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Pages |
713827 (1 to 6) |
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Keywords |
SSPD, SNSPD, superconducting single photon detector, ultra-thin superconducting films, optical fiber coupling, ready to use receiver |
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Abstract |
At present superconducting detectors become increasingly attractive for various practical applications. In this paper we present results on the depelopment of fiber coupled receiver systems for the registration of IR single photons, optimized for telecommunication and quantum-cryptography. These receiver systems were developed on the basis of superconducting single photon detectors (SSPD) of VIS and IR wavelength ranges. The core of the SSPD is a narrow ( 100 nm) and long ( 0,5 mm) strip in the form of a meander which is patterned from a 4-nm-thick NbN film (TC=10-11 K, jC= 5-7•106 A/cm2); the sensitive area dimensions are 10×10 μm2. The main problem to be solved while the receiver system development was optical coupling of a single-mode fiber (9 microns in diameter) with the SSPD sensitive area. Characteristics of the developed system at the optical input are as follows: quantum efficiency >10 % (at 1.3 μm), >4 % (at 1.55 μm); dark counts rate ≤1 s-1; duration of voltage pulse ≤5 ns; jitter ≤40 ps. The receiver systems have either one or two identical channels (for the case of carrying out correlation measurements) and are made as an insert in a helium storage Dewar. |
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Spie |
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Tománek, P.; Senderáková, D.; Hrabovský, M. |
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1405 |
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Author |
Thijs de Graauw; Nick Whyborn; Frank Helmich; Pieter Dieleman; Peter Roelfsema; Emmanuel Caux; Tom Phillips; Jürgen Stutzki; Douwe Beintema; Arnold Benz; Nicolas Biver; Adwin Boogert; Francois Boulanger; Sergey Cherednichenko; Odile Coeur-Joly; Claudia Comito; Emmanuel Dartois; Albrecht de Jonge; Gert de Lange; Ian Delorme; Anna DiGiorgio; Luc Dubbeldam; Kevin Edwards; Michael Fich; Rolf Güsten; Fabrice Herpin; Netty Honingh; Robert Huisman; Herman Jacobs; Willem Jellema; Jon Kawamura; Do Kester; Teun Klapwijk; Thomas Klein; Jacob Kooi; Jean-Michel Krieg; Carsten Kramer; Bob Kruizenga; Wouter Laauwen; Bengt Larsson; Christian Leinz; Rene Liseau; Steve Lord; Willem Luinge; Anthony Marston; Harald Merkel; Rafael Moreno; Patrick Morris; Anthony Murphy; Albert Naber; Pere Planesas; Jesus Martin-Pintado; Micheal Olberg; Piotr Orleanski; Volker Ossenkopf; John Pearson; Michel Perault; Sabine Phillip; Mirek Rataj; Laurent Ravera; Paolo Saraceno; Rudolf Schieder; Frank Schmuelling; Ryszard Szczerba; Russell Shipman; David Teyssier; Charlotte Vastel; Huib Visser; Klaas Wildeman; Kees Wafelbakker; John Ward; Roonan Higgins; Henri Aarts; Xander Tielens; Peer Zaal |
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Title |
The Herschel-heterodyne instrument for the far-infrared (HIFI): instrument and pre-launch testing |
Type |
Conference Article |
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Year |
2008 |
Publication |
Proc. SPIE |
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Volume |
7010 |
Issue |
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Pages |
701004 |
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422 |
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