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Divochiy, A.; Misiaszek, M.; Vakhtomin, Y.; Morozov, P.; Smirnov, K.; Zolotov, P.; Kolenderski, P. |
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Title |
Single photon detection system for visible and infrared spectrum range |
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Journal Article |
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Year |
2018 |
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Opt. Lett. |
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Opt. Lett. |
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43 |
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24 |
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6085-6088 |
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We demonstrate niobium nitride based superconducting single-photon detectors sensitive in the spectral range 452-2300 nm. The system performance was tested in a real-life experiment with correlated photons generated by means of spontaneous parametric downconversion, where one photon was in the visible range and the other was in the infrared range. We measured a signal to noise ratio as high as 4x10(4) in our detection setting. A photon detection efficiency as high as 64% at 1550 nm and 15% at 2300 nm was observed. |
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0146-9592 |
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https://arxiv.org/abs/1807.04273 |
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1227 |
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Sclafani, M.; Marksteiner, M.; Keir, F. M. L.; Divochiy, A.; Korneev, A.; Semenov, A.; Gol'tsman, G.; Arndt, M. |
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Title |
Sensitivity of a superconducting nanowire detector for single ions at low energy |
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Journal Article |
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2012 |
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Nanotechnol. |
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Nanotechnol. |
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23 |
Issue |
6 |
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065501 (1 to 5) |
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Keywords |
NbN SSPD, SNSPD, superconducting single ion detector, SSID, SNSID |
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We report on the characterization of a superconducting nanowire detector for ions at low kinetic energies. We measure the absolute single-particle detection efficiency eta and trace its increase with energy up to eta = 100%. We discuss the influence of noble gas adsorbates on the cryogenic surface and analyze their relevance for the detection of slow massive particles. We apply a recent model for the hot-spot formation to the incidence of atomic ions at energies between 0.2 and 1 keV. We suggest how the differences observed for photons and atoms or molecules can be related to the surface condition of the detector and we propose that the restoration of proper surface conditions may open a new avenue for SSPD-based optical spectroscopy on molecules and nanoparticles. |
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Vienna Center for Quantum Science and Technology, Faculty of Physics, University of Vienna, Vienna, Austria |
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0957-4484 |
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PMID:22248823 |
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1380 |
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Tarkhov, M.; Claudon, J.; Poizat, J. Ph.; Korneev, A.; Divochiy, A.; Minaeva, O.; Seleznev, V.; Kaurova, N.; Voronov, B.; Semenov, A. V.; Gol'tsman, G. |
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Title |
Ultrafast reset time of superconducting single photon detectors |
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Journal Article |
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Year |
2008 |
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Appl. Phys. Lett. |
Abbreviated Journal |
Appl. Phys. Lett. |
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Volume |
92 |
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24 |
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241112 (1 to 3) |
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Keywords |
SSPD, SNSPD |
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0003-6951 |
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429 |
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Gol'tsman, G.; Korneev, A.; Minaeva, O.; Antipov, A.; Divochiy, A.; Kaurova, N.; Voronov, B.; Pan, D.; Cross, A.; Pearlman, A.; Komissarov, I.; Slysz, W.; Sobolewski, R. |
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Title |
Middle-infrared to visible-light ultrafast superconducting single-photon detector |
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Conference Article |
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2006 |
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Proc. ASC |
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Seattle |
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RPLAB @ s @ SSPD_cavity_ASC |
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389 |
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Smirnov, K.; Korneev, A.; Minaeva, O.; Divochiy, A.; Tarkhov, M.; Ryabchun, S.; Seleznev, V.; Kaurova, N.; Voronov, B.; Gol'tsman, G.; Polonsky, S. |
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Title |
Ultrathin NbN film superconducting single-photon detector array |
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Conference Article |
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2007 |
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J. Phys.: Conf. Ser. |
Abbreviated Journal |
J. Phys.: Conf. Ser. |
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61 |
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1081-1085 |
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Keywords |
SSPD array |
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We report on the fabrication process of the 2 × 2 superconducting single-photon detector (SSPD) array. The SSPD array is made from ultrathin NbN film and is operated at liquid helium temperatures. Each detector is a nanowire-based structure patterned by electron beam lithography process. The advances in fabrication technology allowed us to produce highly uniform strips and preserve superconducting properties of the unpatterned film. SSPD exhibit up to 30% quantum efficiency in near infrared and up to 1% at 5-μm wavelength. Due to 120 MHz counting rate and 18 ps jitter, the time-domain multiplexing read-out is proposed for large scale SSPD arrays. Single-pixel SSPD has already found a practical application in non-invasive testing of semiconductor very-large scale integrated circuits. The SSPD significantly outperformed traditional single-photon counting avalanche diodes. |
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1742-6588 |
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408 |
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