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Author Verevkin, A.; Zhang, J.; Sobolewski, Roman; Lipatov, A.; Okunev, O.; Chulkova, G.; Korneev, A.; Smirnov, K.; Gol'tsman, G. N.; Semenov, A. doi  openurl
  Title Detection efficiency of large-active-area NbN single-photon superconducting detectors in the ultraviolet to near-infrared range Type Journal Article
  Year 2002 Publication Appl. Phys. Lett. Abbreviated Journal  
  Volume (down) 80 Issue 25 Pages 4687-4689  
  Keywords NbN SSPD, SNSPD, QE  
  Abstract We report our studies on spectral sensitivity of meander-type, superconducting NbN thin-film single-photon detectors (SPDs), characterized by GHz counting rates of visible and near-infrared photons and negligible dark counts. Our SPDs exhibit experimentally determined quantum efficiencies ranging from ∼0.2% at the 1.55 μm wavelength to ∼70% at 0.4 μm. Spectral dependences of the detection efficiency (DE) at the 0.4 to 3.0-μm-wavelength range are presented. The exponential character of the DE dependence on wavelength, as well as its dependence versus bias current, is qualitatively explained in terms of superconducting fluctuations in our ultrathin, submicron-width superconducting stripes. The DE values of large-active-area NbN SPDs in the visible range are high enough for modern quantum communications.  
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  Notes Approved no  
  Call Number Serial 331  
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Author Boreiko, R.T.; Betz, A.L. url  doi
openurl 
  Title Far-infrared laser emission from deuterated ammonia Type Journal Article
  Year 2002 Publication Applied Physics B: Lasers and Optics Abbreviated Journal Applied Physics B: Lasers and Optics  
  Volume (down) 75 Issue 8 Pages 823-826  
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  Series Volume Series Issue Edition  
  ISSN 0946-2171 ISBN Medium  
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  Notes Approved no  
  Call Number Serial 488  
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Author Gisin, Nicolas; Ribordy, Grégoire; Tittel, Wolfgang; Zbinden, Hugo url  doi
openurl 
  Title Quantum cryptography Type Journal Article
  Year 2002 Publication Reviews of Modern Physics Abbreviated Journal Rev. Mod. Phys.  
  Volume (down) 74 Issue 1 Pages 145-195  
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  ISSN 0034-6861 ISBN Medium  
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  Notes Approved no  
  Call Number Serial 506  
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Author Smolyaninov, I. I.; Zayats, A. V.; Stanishevsky, A.; Davis, C. C. url  doi
openurl 
  Title Optical control of photon tunneling through an array of nanometer-scale cylindrical channels Type Journal Article
  Year 2002 Publication Phys. Rev. B Abbreviated Journal Phys. Rev. B  
  Volume (down) 66 Issue 20 Pages 205414_1-205414_5  
  Keywords optical mixing  
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  Series Volume Series Issue Edition  
  ISSN 1098-0121 ISBN Medium  
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  Notes Approved no  
  Call Number Serial 499  
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Author Peter H. Siegel openurl 
  Title Terahertz technology Type Journal Article
  Year 2002 Publication IEEE Trans. Microw. Theory Techn. Abbreviated Journal  
  Volume (down) 50 Issue 3 Pages 910-928  
  Keywords THz applications  
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  Notes Approved no  
  Call Number Serial 494  
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Author Semenov, Alexei D; Gol'tsman, Gregory N; Sobolewski, Roman url  doi
openurl 
  Title Hot-electron effect in superconductors and its applications for radiation sensors Type Journal Article
  Year 2002 Publication Superconductor Science and Technology Abbreviated Journal Supercond. Sci. Technol.  
  Volume (down) 15 Issue 4 Pages R1-R16  
  Keywords HEB, SSPD  
  Abstract The paper reviews the main aspects of nonequilibrium hot-electron phenomena in superconductors and various theoretical models developed to describe the hot-electron effect. We discuss implementation of the hot-electron avalanche mechanism in superconducting radiation sensors and present the most successful practical devices, such as terahertz mixers and direct intensity detectors, for far-infrared radiation. Our presentation also includes the novel approach to hot-electron quantum detection implemented in superconducting x-ray to optical photon counters.  
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  ISSN 0953-2048 ISBN Medium  
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  Notes Approved no  
  Call Number Serial 416  
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Author Uzawa, Y.; Miki, S.; Wang, Z.; Kawakami, A.; Kroug, M.; Yagoubov, P.; Kollberg, E. url  doi
openurl 
  Title Performance of a quasi-optical NbN hot-electron bolometric mixer at terahertz frequencies Type Journal Article
  Year 2002 Publication Superconductor Science and Technology Abbreviated Journal Supercond. Sci. Technol.  
  Volume (down) 15 Issue 1 Pages 141-145  
  Keywords HEB, mixer  
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  ISSN 0953-2048 ISBN Medium  
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  Notes Approved no  
  Call Number RPLAB @ s @ Serial 548  
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Author Lipatov, A.; Okunev, O.; Smirnov, K.; Chulkova, G.; Korneev, A.; Kouminov, P.; Gol'tsman, G.; Zhang, J.; Slysz, W.; Verevkin, A.; Sobolewski, R. url  doi
openurl 
  Title An ultrafast NbN hot-electron single-photon detector for electronic applications Type Journal Article
  Year 2002 Publication Supercond. Sci. Technol. Abbreviated Journal Supercond. Sci. Technol.  
  Volume (down) 15 Issue 12 Pages 1689-1692  
  Keywords NbN SSPD, SNSPD, QE, jitter, dark counts  
  Abstract We present the latest generation of our superconducting single-photon detector (SPD), which can work from ultraviolet to mid-infrared optical radiation wavelengths. The detector combines a high speed of operation and low jitter with high quantum efficiency (QE) and very low dark count level. The technology enhancement allows us to produce ultrathin (3.5 nm thick) structures that demonstrate QE hundreds of times better, at 1.55 μm, than previous 10 nm thick SPDs. The best, 10 × 10 μm2, SPDs demonstrate QE up to 5% at 1.55 μm and up to 11% at 0.86 μm. The intrinsic detector QE, normalized to the film absorption coefficient, reaches 100% at bias currents above 0.9 Ic for photons with wavelengths shorter than 1.3 μm.  
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  ISSN 0953-2048 ISBN Medium  
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  Notes Approved no  
  Call Number Serial 1533  
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Author Colombelli, R url  doi
openurl 
  Title FIR quantum cascade lasers at λ>20 μm and THz emitters at λ=80 μm Type Journal Article
  Year 2002 Publication Phys. E: Low-dimensional Systems and Nanostructures Abbreviated Journal  
  Volume (down) 13 Issue 2-4 Pages 848-853  
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  ISSN 1386-9477 ISBN Medium  
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  Notes Approved no  
  Call Number Serial 483  
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Author Norton, P. openurl 
  Title HgCdTe infrared detectors Type Journal Article
  Year 2002 Publication Opto-Electronics Review Abbreviated Journal Opto-Electron. Rev.  
  Volume (down) 10 Issue 3 Pages 159-174  
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  Notes Approved no  
  Call Number Serial 458  
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