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Author de Lange, G.; Hu, Q.; Huang, H.; Lichtenberger, A. W. openurl 
  Title Development of a 170-210 GHz 3×3 micromachined SIS imaging array Type Conference Article
  Year 1997 Publication Proc. 8th Int. Symp. Space Terahertz Technol. Abbreviated Journal (up)  
  Volume Issue Pages 518  
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  Call Number Serial 278  
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Author Sobolewski, R.; Verevkin, A.; Gol'tsman, G.N.; Lipatov, A.; Wilsher, K. url  doi
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  Title Ultrafast superconducting single-photon optical detectors and their applications Type Journal Article
  Year 2003 Publication IEEE Trans. Appl. Supercond. Abbreviated Journal (up)  
  Volume 13 Issue 2 Pages 1151-1157  
  Keywords NbN SSPD, SNSPD  
  Abstract We present a new class of ultrafast single-photon detectors for counting both visible and infrared photons. The detection mechanism is based on photon-induced hotspot formation, which forces the supercurrent redistribution and leads to the appearance of a transient resistive barrier across an ultrathin, submicrometer-width, superconducting stripe. The devices were fabricated from 3.5-nm- and 10-nm-thick NbN films, patterned into <200-nm-wide stripes in the 4 /spl times/ 4-/spl mu/m/sup 2/ or 10 /spl times/ 10-/spl mu/m/sup 2/ meander-type geometry, and operated at 4.2 K, well below the NbN critical temperature (T/sub c/=10-11 K). Continuous-wave and pulsed-laser optical sources in the 400-nm-to 3500-nm-wavelength range were used to determine the detector performance in the photon-counting mode. Experimental quantum efficiency was found to exponentially depend on the photon wavelength, and for our best, 3.5-nm-thick, 100-/spl mu/m/sup 2/-area devices varied from >10% for 405-nm radiation to 3.5% for 1550-nm photons. The detector response time and jitter were /spl sim/100 ps and 35 ps, respectively, and were acquisition system limited. The dark counts were below 0.01 per second at optimal biasing. In terms of the counting rate, jitter, and dark counts, the NbN single-photon detectors significantly outperform their semiconductor counterparts. Already-identified applications for our devices range from noncontact testing of semiconductor CMOS VLSI circuits to free-space quantum cryptography and communications.  
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  ISSN 1051-8223 ISBN Medium  
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  Call Number Serial 509  
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Author Mann, C. M.; Matheson, D. N.; Ellison, B. N.; Oldfield, M. L.; Moyna, B. P.; Spencer, J. J.; Wilsher, D. S.; Maddison, B. J. openurl 
  Title On the design and measurement of a 2.5 THz waveguide mixer Type Conference Article
  Year 1998 Publication Proc. 9th Int. Symp. Space Terahertz Technol. Abbreviated Journal (up)  
  Volume Issue Pages 161  
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  Call Number RPLAB @ s @ schottky_Tn_16800_at_2p5THz Serial 283  
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Author Tetsu Suzuki; Chris Mann; Takanari Yasui; Hirotomo Fujishima; Koji Mizuno openurl 
  Title Quasi–integrated planar Schottky barrier diodes for 2.5 THz receivers Type Conference Article
  Year 1998 Publication Proc. 9th Int. Symp. Space Terahertz Technol. Abbreviated Journal (up)  
  Volume Issue Pages 187  
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  Call Number RPLAB @ s @ schottky_Tn_24000_at_2p5THz Serial 284  
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Author Maddison, B. J.; Martin, R. J.; Oldfield, M. L.; Mann, C. M.; Matheson, D. N.; Ellison, B. N.; Thornton, J.; Hall, W. J.; Lamarre, D. M. openurl 
  Title A compact 500 GHz planar schottky siode receiver with a wide instantaneous bandwidth Type Conference Article
  Year 1998 Publication Proc. 9th Int. Symp. Space Terahertz Technol. Abbreviated Journal (up)  
  Volume Issue Pages 367  
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  Call Number RPLAB @ s @ schottky_Tn_4800_at_p5THz Serial 286  
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