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Author Jackson, B. D.; Baryshev, A. M.; de Lange, G.; Gao, J. R.; Shitov, S. V.; Iosad, N. N.; Klapwijk, T. M.
Title Low-noise 1 THz superconductor-insulator-superconductor mixer incorporating a NbTiN/SiO2/Al tuning circuit Type Journal Article
Year 2001 Publication (up) Appl. Phys. Lett. Abbreviated Journal
Volume 79 Issue 3 Pages 436
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Call Number RPLAB @ s @ sis_Jackson_2001 Serial 314
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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 (up) 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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Call Number Serial 1543
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Author Siemsen, K. J.; Bernard, J. E.; Madej, A. A.; Marmet, L.
Title Absolute frequency measurement of a CO2/OsO4 stabilized laser at 28.8 THz Type Journal Article
Year 2001 Publication (up) Applied Physics B: Lasers and Optics Abbreviated Journal Appl. Phys. B: Lasers and Optics
Volume 72 Issue Pages 567-573
Keywords HgCdTe detector
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Call Number Serial 462
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Author Shelkovnikov, A.; Grain, C.; Nguyen, C. T.; Butcher, R. J.; Amy-Klein, A.; Chardonnet, C.
Title 500-Hz two-photon Ramsey fringes with a SF6 beam: towards a new frequency standard in the 30-THz spectral region Type Journal Article
Year 2001 Publication (up) Applied Physics B: Lasers and Optics Abbreviated Journal Appl. Phys. B: Lasers and Optics
Volume 73 Issue Pages 93-98
Keywords THz applications
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Call Number Serial 485
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Author Ganzevles, W. F. M.; Gao, J. R.; de Korte, P. A. J.; Klapwijk, T. M.
Title Direct response of microstrip line coupled Nb THz hot-electron bolometer mixers Type Journal Article
Year 2001 Publication (up) Applied Physics Letters Abbreviated Journal Appl. Phys. Lett.
Volume 79 Issue 15 Pages 2483-2485
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Call Number Serial 311
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