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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. url  doi
openurl 
  Title Ultrabroadband coherence-domain imaging using parametric downconversion and superconducting single-photon detectors at 1064 nm Type Journal Article
  Year (up) 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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  Notes Approved no  
  Call Number RPLAB @ gujma @ Serial 652  
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Author Елезов, М. С.; Корнеев, А. А; Дивочий, А. В.; Гольцман, Г. Н. url  isbn
openurl 
  Title Сверхпроводящие однофотонные детекторы с разрешением числа фотонов Type Conference Article
  Year (up) 2009 Publication Науч. сессия МИФИ Abbreviated Journal Науч. сессия МИФИ  
  Volume Issue Pages 47-58  
  Keywords PNR SSPD, SNSPD  
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  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN 978-5-7262-1042-1 Medium  
  Area Expedition Conference  
  Notes УДК 533.14(06)+004.056(06) Фотоника и информационная оптика Approved no  
  Call Number RPLAB @ sasha @ елезов2009сверхпроводящие Serial 1029  
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Author Smirnov, K. V.; Vakhtomin, Yu. B.; Divochiy, A. V.; Ozhegov, R. V.; Pentin, I. V.; Slivinskaya, E. V.; Tarkhov, M. A.; Gol’tsman, G. N. url  openurl
  Title Single-photon detectors for the visible and infrared parts of the spectrum based on NbN nanostructures Type Abstract
  Year (up) 2009 Publication Proc. Progress In Electromagnetics Research Symp. Abbreviated Journal Proc. Progress In Electromagnetics Research Symp.  
  Volume Issue Pages 863-864  
  Keywords SSPD, SNSPD  
  Abstract The research by the group of Moscow State Pedagogical University into the hot-electron phenomena in thin superconducting films has led to the development of new types ofdetectors [1, 2] and their use both in fundamental and applied studies [3–6]. In this paper, wepresent the results of the development and fabrication of receiving systems for the visible andinfrared parts of the spectrum optimised for use in telecommunication systems and quantumcryptography.  
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  Publisher Place of Publication Moscow, Russia Editor  
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  Notes Approved no  
  Call Number RPLAB @ sasha @ smirnovsession Serial 1050  
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Author Driessen, E. F. C.; Braakman, F. R.; Reiger, E. M.; Dorenbos, S. N.; Zwiller, V.; de Dood, M. J. A. doi  openurl
  Title Impedance model for the polarization-dependent optical absorption of superconducting single-photon detectors Type Journal Article
  Year (up) 2009 Publication Eur. Phys. J. Appl. Phys. Abbreviated Journal  
  Volume 47 Issue Pages 10701  
  Keywords SSPD, SNSPD  
  Abstract We measured the single-photon detection efficiency of NbN superconducting single-photon detectors as a function of the polarization state of the incident light for different wavelengths in the range from 488 nm to 1550 nm. The polarization contrast varies from ~% at 488 nm to~0% at 1550 nm, in good agreement with numerical calculations. We use an optical-impedance model to describe the absorption for polarization parallel to the wires of the detector. For the extremely lossy NbN material, the absorption can be kept constant by keeping the product of layer thickness and filling factor constant. As a consequence, the maximum possible absorption is independent of filling factor. By illuminating the detector through the substrate, an absorption efficiency of ~0% can be reached for a detector on Si or GaAs, without the need for an optical cavity.  
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  Language English Summary Language Original Title  
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  Notes Approved no  
  Call Number RPLAB @ alex_kazakov @ Serial 1062  
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Author Fiore, A.; Marsili, F.; Bitauld, D.; Gaggero, A.; Leoni, R.; Mattioli, F.; Divochiy, A.; Korneev, A.; Seleznev, V.; Kaurova, N.; Minaeva, O.; Gol’tsman, G. url  doi
openurl 
  Title Counting photons using a nanonetwork of superconducting wires Type Conference Article
  Year (up) 2009 Publication Nano-Net Abbreviated Journal  
  Volume Issue Pages 120-122  
  Keywords SSPD, SNSPD  
  Abstract We show how the parallel connection of photo-sensitive superconducting nanowires can be used to count the number of photons in an optical pulse, down to the single-photon level. Using this principle we demonstrate photon-number resolving detectors with unprecedented sensitivity and speed at telecommunication wavelengths.  
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  Publisher Springer Berlin Heidelberg Place of Publication Berlin, Heidelberg Editor Cheng, M.  
  Language Summary Language Original Title  
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  Series Volume Series Issue Edition  
  ISSN 978-3-642-02427-6 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number 10.1007/978-3-642-02427-6_20 Serial 1242  
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