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Author Rosfjord, K. M.; Yang, J. K. W.; Dauler, E. A.; Anant, V.; Berggren, K. K.; Kerman, A. J.; Voronov, B. M.; Gol’tsman, G. N.
Title Increased detection efficiencies of nanowire single-photon detectors by integration of an optical cavity and anti-reflection coating Type Conference Article
Year 2006 Publication CLEO/QELS Abbreviated Journal CLEO/QELS
Volume Issue Pages (down) JTuF2 (1 to 2)
Keywords SSPD, SNSPD
Abstract We fabricate and test superconducting NbN-nanowire single-photon detectors with an integrated optical cavity and anti-reflection coating. We design the cavity and coating such as to maximize absorption in the NbN film of the detector.
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Area Expedition Conference 2006 Conference on Lasers and Electro-Optics and 2006 Quantum Electronics and Laser Science Conference
Notes Approved no
Call Number Serial 1452
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Author Marsili, F.; Bitauld, D.; Divochiy, A.; Gaggero, A.; Leoni, R.; Mattioli, F.; Korneev, A.; Seleznev, V.; Kaurova, N.; Minaeva, O.; Gol’tsman, G.; Lagoudakis, K.G.; Benkahoul, M.; Lévy, F.; Fiore, A.
Title Superconducting nanowire photon number resolving detector at telecom wavelength Type Conference Article
Year 2008 Publication CLEO/QELS Abbreviated Journal CLEO/QELS
Volume Issue Pages (down) Qmj1 (1 to 2)
Keywords PNR SSPD; SNSPD; Detectors; Infrared; Low light level; Diode lasers; Photons; Scanning electron microscopy; Superconductors; Ti:sapphire lasers
Abstract We demonstrate a photon-number-resolving (PNR) detector, based on parallel superconducting nanowires, capable of resolving up to 5 photons in the telecommunication wavelength range, with sensitivity and speed far exceeding existing approaches.
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Publisher Optical Society of America Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
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ISSN ISBN 978-1-55752-859-9 Medium
Area Expedition Conference
Notes Approved no
Call Number Marsili:08 Serial 1243
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Author Pentin, I. V.; Smirnov, A. V.; Ryabchun, S. A.; Gol’tsman, G. N.; Vaks, V. L.; Pripolzin, S. I.; Paveliev, D. G.
Title Heterodyne source of THz range based on semiconductor superlattice multiplier Type Conference Article
Year 2011 Publication IRMMW-THz Abbreviated Journal IRMMW-THz
Volume Issue Pages (down) 1-2
Keywords NbN HEB mixer, superlattice
Abstract We present the results of our studies of the possibility of developing a heterodyne receiver incorporating a hot-electron bolometer mixer as the detector and a semiconductor superlattice multiplier driven by a reference synthesizer as the local oscillator. We observe that such a local oscillator offers enough power in the terahertz range to pump the HEB into the operating state.
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Area Expedition Conference
Notes Approved no
Call Number 6105209 Serial 1384
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Author Sobolewski, R.; Verevkin, A.; Gol’tsman, G. N.
Title Superconducting optical single-photon detectors Type Conference Article
Year 2004 Publication CLEO/QELS Abbreviated Journal CLEO/QELS
Volume Issue Pages (down) IThD1
Keywords SSPD, QE, jitter, dark counts
Abstract We review the development of superconducting single-photon detectors. The devices are characterized by experimental quantum efficiency of ~8% for infrared photons, counting rate ~2 GHz, 18 ps jitter, and <0.01 per second dark counts.
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Publisher Optical Society of America Place of Publication Editor
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Notes Approved no
Call Number Sobolewski:04 Serial 1489
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Author Beck, M.; Klammer, M.; Lang, S.; Leiderer, P.; Kabanov, V. V.; Gol’tsman, G. N.; Demsar, J.
Title Energy-gap dynamics of superconducting NbN thin films studied by time-resolved terahertz spectroscopy Type Miscellaneous
Year 2011 Publication arXiv Abbreviated Journal
Volume Issue Pages (down)
Keywords NbN thin film, energy gap dynamics
Abstract Using time-domain Terahertz spectroscopy we performed direct studies of the photoinduced suppression and recovery of the superconducting gap in a conventional BCS superconductor NbN. Both processes are found to be strongly temperature and excitation density dependent. The analysis of the data with the established phenomenological Rothwarf-Taylor model enabled us to determine the bare quasiparticle recombination rate, the Cooper pair-breaking rate and the electron-phonon coupling constant, \lambda = 1.1 +/- 0.1, which is in excellent agreement with theoretical estimates.
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Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
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Area Expedition Conference
Notes Duplicated as 641 Approved no
Call Number Serial 1388
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