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Author Gol'tsman, G. N.; Korneev, A.; Rubtsova, I.; Milostnaya, I.; Chulkova, G.; Minaeva, O.; Smirnov, K.; Voronov, B.; Słysz, W.; Pearlman, A.; Verevkin, A.; Sobolewski, R.
Title Ultrafast superconducting single-photon detectors for near-infrared-wavelength quantum communications Type Journal Article
Year 2005 Publication Phys. Stat. Sol. (C) Abbreviated Journal Phys. Stat. Sol. (C)
Volume (down) 2 Issue 5 Pages 1480-1488
Keywords NbN SSPD, SNSPD
Abstract We present our progress on the research and development of NbN superconducting single‐photon detectors (SSPD's) for ultrafast counting of near‐infrared photons for secure quantum communications. Our SSPD's operate in the quantum detection mode based on the photon‐induced hotspot formation and subsequent development of a transient resistive barrier across an ultrathin and submicron‐width superconducting stripe. The devices are fabricated from 4‐nm‐thick NbN films and kept in the 4.2‐ to 2‐K temperature range. The detector experimental quantum efficiency in the photon‐counting mode reaches above 40% for the visible light and up to 30% in the 1.3‐ to 1.55‐µm wavelength range with dark counts below 0.01 per second. The experimental real‐time counting rate is above 2 GHz and is limited by our readout electronics. The SSPD's timing jitter is below 18 ps, and the best‐measured value of the noise‐equivalent power (NEP) is 5 × 10–21 W/Hz1/2 at 1.3 µm. In terms of quantum efficiency, timing jitter, and maximum counting rate, our NbN SSPD's significantly outperform semiconductor avalanche photodiodes and photomultipliers in the 1.3‐ to 1.55‐µm range.
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Language Summary Language Original Title
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Series Volume Series Issue Edition
ISSN 1610-1634 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number Serial 1479
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Author Zhang, J.; Pearlman, A.; Slysz, W.; Verevkin, A.; Sobolewski, R.; Wilsher, K.; Lo, W.; Okunev, O.; Korneev, A.; Kouminov, P.; Chulkova, G.; Gol’tsman, G. N.
Title A superconducting single-photon detector for CMOS IC probing Type Conference Article
Year 2003 Publication Proc. 16-th LEOS Abbreviated Journal Proc. 16-th LEOS
Volume (down) 2 Issue Pages 602-603
Keywords NbN SSPD, SNSPD
Abstract In this paper, a novel, time-resolved, NbN-based, superconducting single-photon detector (SSPD) has been developed for probing CMOS integrated circuits (ICs) using photon emission timing analysis (PETA).
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Area Expedition Conference The 16th Annual Meeting of the IEEE Lasers and Electro-Optics Society, 2003. LEOS 2003.
Notes Approved no
Call Number Serial 1510
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Author Kroug, M.; Yagoubov, P.; Gol'tsman, G.; Kollberg, E.
Title NbN quasioptical phonon cooled hot electron bolometric mixers at THz frequencies Type Conference Article
Year 1997 Publication Inst. Phys. Conf. Ser. Abbreviated Journal Inst. Phys. Conf. Ser.
Volume (down) 1 Issue Pages 405-408
Keywords NbN HEB mixers
Abstract
Address Veldhoven
Corporate Author Thesis
Publisher Place of Publication Bristol Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0951-3248 ISBN Medium
Area Expedition Conference 3rd Eur. Conf. on Applied Superconductivity
Notes Approved no
Call Number Serial 1600
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Author Merkel, H. F.; Yagoubov, P. A.; Kroug, M.; Khosropanah, P.; Kollberg, E. L.; Gol’tsman, G. N.; Gershenzon, E. M.
Title Noise temperature and absorbed LO power measurement methods for NbN phonon-cooled hot electron bolometric mixers at terahertz frequencies Type Conference Article
Year 1998 Publication Proc. 28th European Microwave Conf. Abbreviated Journal Proc. 28th European Microwave Conf.
Volume (down) 1 Issue Pages 294-299
Keywords NbN HEB mixers
Abstract In this paper the absorbed LO power requirements and the noise performance of NbN based phonon-cooled hot electron bolometric (HEB) quasioptical mixers are investigated for RF frequencies in the 0.55-1.1 range The minimal measured DSB noise temperatures are about 500 K at 640 GHz, 600 K at 750 GHz, 850 K at 910 GHz and 1250 K at 1.1 THz. The increase in noise temperature at 1.1THz is attributed to water absorption. The absorbed LO power is measured using a calorimetric approach. The results are subsequently corrected for lattice heating. These values are compared to results of a novel one dimensional hot spot mixer models and to a more traditional isotherm method which tends to underestimate the absorbed LO power for small bias powers. Typically a LO power between 50nW and 100nW is needed to pump the device to the optimal operating point.
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Area Expedition Conference 28th European Microwave Conference
Notes Approved no
Call Number Serial 1580
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Author Chen, J.; Kang, L.; Jin, B. B.; Xu, W. W.; Wu, P. H.; Zhang, W.; Jiang, L.; Li, N.; Shi, S. C.; Gol'tsman, G. N.
Title Properties of terahertz superconducting hot electron bolometer mixers Type Journal Article
Year 2008 Publication Int. J. Terahertz Sci. Technol. Abbreviated Journal Int. J. Terahertz Sci. Technol.
Volume (down) 1 Issue 1 Pages 37-41
Keywords NbN HEB mixers, noise temperature
Abstract A quasi-optical superconducting niobium nitride (NbN) hot electron bolometer (HEB) mixer has been fabricated and measured in the terahertz (THz) frequency range of 0.5~2.52 THz. A receiver noise temperature of 2000 K at 2.52 THz has been obtained for the mixer without corrections. Also, the effect of a Parylene C anti-reflection (AR) coating on the silicon (Si) lens has been studied.
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Notes Approved no
Call Number Serial 1417
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