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Maslennikov, S.; Antipov, S.; Shishkov, A.; Svechnikov, S.; Voronov, B.; Smirnov, K.; Kaurova, N.; Drakinski, V.; Gol'tsman, G. |
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NbN HEB mixer noise temperature measurements with hot/cold load mounted inside the helium cryostat at 300 GHz |
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2002 |
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Proc. Int. Student Seminar on Microwave Appl. of Novel Physical Phenomena supported by IEEE |
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LETI |
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St.-Petersburg |
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Blundell, R.; Barrett, J.; H. Gibson, C. Gotteib; Hunter, T.; Kimberk, R.; Leiker, S.; Marrone, D.; Meledin, D.; Paine, S.; Papa, D. C.; Plante, R.; Riddle, P.; Smith, M.; Sridharan, T.; Tong, C. E.; Wilson, R.; Diaz, M.; Bronfman, L.; May, J.; Otarola, A.; Radford, S. J. |
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Prospects for terahertz radio astronomy from Northean Chile |
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Conference Article |
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2002 |
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Proc. 13th Int. Symp. Space Terahertz Technol. |
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159-166 |
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Cambridge, MA, USA |
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Harvard university |
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RPLAB @ s @ meledin_2p5_stability |
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327 |
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Baryshev, A.; Lauria, E.; Hesper, R.; Zijlstra, T.; Wild, W. |
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Fixed-tuned waveguide 0.6 THz SIS mixer with wide band IF |
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2002 |
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Proc. 13th Int. Symp. Space Terahertz Technol. |
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1-9 |
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Cambridge, MA, USA |
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Harward University |
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RPLAB @ s @ nt_SIS_136at0p65THz |
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Verevkin, A.; Zhang, J.; Sobolewski, Roman; Lipatov, A.; Okunev, O.; Chulkova, G.; Korneev, A.; Smirnov, K.; Gol'tsman, G. N.; Semenov, A. |
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Detection efficiency of large-active-area NbN single-photon superconducting detectors in the ultraviolet to near-infrared range |
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2002 |
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Appl. Phys. Lett. |
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80 |
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25 |
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4687-4689 |
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NbN SSPD, SNSPD, QE |
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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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Ediss, G. A.; Koller, D. |
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68.5 to 118 GHz measurements of possible infrared filter materials: black polyethylene, Zitex, and grooved and un-grooved fluorogold and HDPE |
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Miscellaneous |
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2002 |
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ALMA Memo |
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412 |
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RPLAB @ s @ |
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446 |
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