| Records |
| Author |
Gol’tsman, G. N.; Okunev, O.; Chulkova, G.; Lipatov, A.; Semenov, A.; Smirnov, K.; Voronov, B.; Dzardanov, A.; Williams, C.; Sobolewski, R. |
| Title |
Picosecond superconducting single-photon optical detector |
Type |
Journal Article |
| Year |
2001 |
Publication  |
Appl. Phys. Lett. |
Abbreviated Journal |
Appl. Phys. Lett. |
| Volume |
79 |
Issue |
6 |
Pages |
705-707 |
| Keywords |
NbN SSPD, SNSPD |
| Abstract |
We experimentally demonstrate a supercurrent-assisted, hotspot-formation mechanism for ultrafast detection and counting of visible and infrared photons. A photon-induced hotspot leads to a temporary formation of a resistive barrier across the superconducting sensor strip and results in an easily measurable voltage pulse. Subsequent hotspot healing in ∼30 ps time frame, restores the superconductivity (zero-voltage state), and the detector is ready to register another photon. Our device consists of an ultrathin, very narrow NbN strip, maintained at 4.2 K and current-biased close to the critical current. It exhibits an experimentally measured quantum efficiency of ∼20% for 0.81 μm wavelength photons and negligible dark counts. |
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0003-6951 |
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1543 |
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| Author |
Shcherbatenko, M.; Elezov, M.; Manova, N.; Sedykh, K.; Korneev, A.; Korneeva, Y.; Dryazgov, M.; Simonov, N.; Feimov, A.; Goltsman, G.; Sych, D. |
| Title |
Single-pixel camera with a large-area microstrip superconducting single photon detector on a multimode fiber |
Type |
Journal Article |
| Year |
2021 |
Publication |
Appl. Phys. Lett. |
Abbreviated Journal |
Appl. Phys. Lett. |
| Volume |
118 |
Issue |
18 |
Pages |
181103 |
| Keywords |
NbN SSPD, SNSPD |
| Abstract |
High sensitivity imaging at the level of single photons is an invaluable tool in many areas, ranging from microscopy to astronomy. However, development of single-photon sensitive detectors with high spatial resolution is very non-trivial. Here we employ the single-pixel imaging approach and demonstrate a proof-of-principle single-pixel single-photon imaging setup. We overcome the problem of low light gathering efficiency by developing a large-area microstrip superconducting single photon detector coupled to a multi-mode optical fiber interface. We show that the setup operates well in the visible and near infrared spectrum, and is able to capture images at the single-photon level.
We thank Philipp Zolotov and Pavel Morozov for NbN film fabrication, ARC coating, and fiber coupling of the detector. We also thank Swabian Instruments GmbH and Dr. Helmut Fedder personally for the kindly provided experimental equipment (Time Tagger Ultra 8). The work in the part of SNSPD research and development was supported by the Russian Foundation for Basic Research Project No. 18-29-20100. The work in the part of the optical setup and imaging was supported by Russian Foundation for Basic Research Project No. 20-32-51004. |
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0003-6951 |
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no |
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1770 |
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| Author |
Mohan, Nishant; Minaeva, Olga; Goltsman, Gregory N.; Saleh, Mohammed F.; Nasr, Magued B.; Sergienko, Alexander V.; Saleh, Bahaa E.; Teich, Malvin C. |
| Title |
Ultrabroadband coherence-domain imaging using parametric downconversion and superconducting single-photon detectors at 1064 nm |
Type |
Journal Article |
| Year |
2009 |
Publication |
Appl. Opt. |
Abbreviated Journal |
Appl. Opt. |
| Volume |
48 |
Issue |
20 |
Pages |
4009–4017 |
| Keywords |
SSPD, SNSPD, SPAD |
| Abstract |
Coherence-domain imaging systems can be operated in a single-photon-counting mode, offering low detector noise; this in turn leads to increased sensitivity for weak light sources and weakly reflecting samples. We have demonstrated that excellent axial resolution can be obtained in a photon-counting coherence-domain imaging (CDI) system that uses light generated via spontaneous parametric downconversion (SPDC) in a chirped periodically poled stoichiometric lithium tantalate (chirped-PPSLT) structure, in conjunction with a niobium nitride superconducting single-photon detector (SSPD). The bandwidth of the light generated via SPDC, as well as the bandwidth over which the SSPD is sensitive, can extend over a wavelength region that stretches from 700 to 1500 nm. This ultrabroad wavelength band offers a near-ideal combination of deep penetration and ultrahigh axial resolution for the imaging of biological tissue. The generation of SPDC light of adjustable bandwidth in the vicinity of 1064 nm, via the use of chirped-PPSLT structures, had not been previously achieved. To demonstrate the usefulness of this technique, we construct images for a hierarchy of samples of increasing complexity: a mirror, a nitrocellulose membrane, and a biological sample comprising onion-skin cells. |
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RPLAB @ gujma @ |
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652 |
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Jukna, A.; Kitaygorsky, J.; Pan, D.; Cross, A.; Perlman, A.; Komissarov, I.; Sobolewski, R.; Okunev, O.; Smirnov, K.; Korneev, A.; Chulkova, G.; Milostnaya, I.; Voronov, B.; Gol'tsman, G. |
| Title |
Dynamics of hotspot formation in nanostructured superconducting stripes excited with single photons |
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Journal Article |
| Year |
2008 |
Publication |
Acta Physica Polonica A |
Abbreviated Journal |
Acta Physica Polonica A |
| Volume |
113 |
Issue |
3 |
Pages |
955-958 |
| Keywords |
SSPD, SNSPD |
| Abstract |
Dynamics of a resistive hotspot formation by near-infrared-wavelength single photons in nanowire-type superconducting NbN stripes was investigated. Numerical simulations of ultrafast thermalization of photon-excited nonequilibrium quasiparticles, their multiplication and out-diffusion from a site of the photon absorption demonstrate that 1.55 μm wavelength photons create in an ultrathin, two-dimensional superconducting film a resistive hotspot with the diameter which depends on the photon energy, and the nanowire temperature and biasing conditions. Our hotspot model indicates that under the subcritical current bias of the 2D stripe, the electric field penetrates the superconductor at the hotspot boundary, leading to suppression of the stripe superconducting properties and accelerated development of a voltage transient across the stripe. |
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1414 |
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Okunev, O.; Smirnov, K.; Chulkova, G.; Korneev, A.; Lipatov, A.; Gol'tsman, G.; Zhang, J.; Slysz, W.; Verevkin, A.; Sobolewski, Roman |
| Title |
Ultrafast NBN hot-electron single-photon detectors for electronic applications |
Type |
Abstract |
| Year |
2002 |
Publication |
Abstracts 8-th IUMRS-ICEM |
Abbreviated Journal |
Abstracts 8-th IUMRS-ICEM |
| Volume |
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NbN SSPD, SNSPD |
| Abstract |
We present a new, simple to manufacture, single-photon detector (SPD), which can work from ultraviolet to near-infrared wavelengths of optical radiation and combines high speed of operation, high quantum efficiency (QE), and very low dark counts. The devices are superconducting and operate at temperature below 5 K. The physics of operation of our SPD is based on formation of a photon-induced resistive hotspot and subsequent appearance of a transient resistive barrier across an ultrathin and submicron-wide superconductor. |
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8th IUMRS International Conference on Electronic Materials |
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1532 |
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Zolotov, P.; Divochiy, A.; Korneeva, Yu.; Vakhtomin, Yu.; Seleznev, V.; Smirnov, K. |
| Title |
Capability investigation of superconducting single-photon detectors, optimized for 800–1200 nm spectrum range |
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Miscellaneous |
| Year |
2015 |
Publication |
3th ICQT |
Abbreviated Journal |
3th ICQT |
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SSPD, SNSPD |
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Hotel Ukraina (Radisson), Moscow |
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Poster |
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1253 |
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Goltsman, G. N.; Korneev, A. A.; Finkel, M. I.; Divochiy, A. V.; Florya, I. N.; Korneeva, Y. P.; Tarkhov, M. A.; Ryabchun, S. A.; Tretyakov, I. V.; Maslennikov, S. N.; Kaurova, N. S.; Chulkova, G. M.; Voronov, B. M. |
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Superconducting hot-electron bolometer as THz mixer, direct detector and IR single-photon counter |
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Abstract |
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2010 |
Publication |
35th Int. Conf. Infrared, Millimeter, and Terahertz Waves |
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1-1 |
| Keywords |
SSPD, SNSPD, HEB |
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We present a new generation of superconducting single-photon detectors (SSPDs) and hot-electron superconducting sensors with record characteristic for many terahertz and optical applications. |
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2162-2027 |
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RPLAB @ sasha @ goltsman2010superconducting |
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1028 |
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Gol’tsman, G.; Korneev, A.; Tarkhov, M.; Seleznev, V.; Divochiy, A.; Minaeva, O.; Kaurova, N.; Voronov, B.; Okunev, O.; Chulkova, G.; Milostnaya, I.; Smirnov, K. |
| Title |
Middle-infrared ultrafast superconducting single photon detector |
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Conference Article |
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2007 |
Publication |
32nd IRMW / 15th ICTE |
Abbreviated Journal |
32nd IRMW / 15th ICTE |
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115-116 |
| Keywords |
SSPD, SNSPD |
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We present the results of the research on quantum efficiency of the ultrathin-film superconducting single-photon detectors (SSPD) in the wavelength rage from 1 mum to 5.7 mum. Reduction of operation temperature to 1.6 K allowed us to measure quantum efficiency of ~1 % at 5.7 mum wavelength with the SSPD made from 4-nm-thick NbN film. In a pursuit of further performance improvement we endeavored SSPD fabricating from 4-nm-thick MoRe film as an alternative material. The MoRe film exhibited transition temperature of 7.7K, critical current density at 4.2 K temperature was 1.1times10 6 A/cm 2 , and diffusivity 1.73 cmVs. The single-photon response was observed with MoRe SSPD at 1.3 mum wavelength with quantum efficiency estimated to be 0.04%. |
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no |
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1246 |
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Goltsman, G. |
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Superconducting NbN hot-electron bolometer mixer, direct detector and single-photon counter: from devices to systems |
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Report |
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2009 |
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2-nd Int. Conf. EUROFLUX |
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2-nd Int. Conf. EUROFLUX |
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HEB, SSPD, SNSPD |
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Avignon, France |
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Provided by the SAO/NASA Astrophysics Data System |
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1398 |
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Korneev, A.; Kovalyuk, V.; Ferrari, S.; Kahl, O.; Pernice, W.; An, P.; Golikov, A.; Zubkova, E.; Goltsman, G. |
| Title |
Superconducting Single-Photon Detectors for Integrated Nanophotonics Circuits |
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Conference Article |
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2017 |
Publication |
16th ISEC |
Abbreviated Journal |
16th ISEC |
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1-3 |
| Keywords |
SSPD, SNSPD |
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We present an overview of our recent achievements in integration of superconducting nanowire single-photon detectors SNSPD with dielectric optical waveguides. We are able to produce complex nanophotonics integrated circuits containing optical elements and photon detector on single chip thus producing a compact integrated platform for quantum optics applications. |
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1200 |
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