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Author Heusinger, M. A.; Nebosis,R. S.; Schatz, W.; Renk, K. F.; Gol’tsman, G. N.; Karasik, B. S.; Semenov, A. D.; Gershenzon, E. M.
Title Temperature dependence of bolometric and non-bolometric photoresponse of a structured YBa2Cu3O7-δ thin film Type Conference Article
Year 1993 Publication (down) Phonon Scattering in Condensed Matter VII. Springer Series in Solid-State Sciences Abbreviated Journal Phonon Scattering in Condensed Matter VII. Springer Series in Solid-State Sciences
Volume 112 Issue Pages 193-195
Keywords YBCO HTS detectors
Abstract We investigated the temperature dependence of the transient voltage photoresponse of a current biased structured YBa2Cu3O7−δ thin film in its transition temperature region, around 79 K. Both, picosecond nonbolometric and nanosecond bolometric response to ultrashort far-infrared laser pulses were found for frequencies between 25 cm−1 and 215 cm−1. We will discuss optimum conditions for radiation detection and present an analysis of the dynamical behaviour of excited high T c thin films.
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Corporate Author Thesis
Publisher Place of Publication Editor Meissner, M.; Pohl, R. O.
Language Summary Language Original Title
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ISSN ISBN Medium
Area Expedition Conference Seventh International Conference, Cornell University, Ithaca, New York, August 3-7, 1992
Notes Approved no
Call Number Serial 1663
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Author Sergeev, A. V.; Aksaev, E. E.; Gogidze, I. G.; Gol’tsman, G. N.; Semenov, A. D.; Gershenzon, E. M.
Title Thermal boundary resistance at YBaCuO film-substrate interface Type Conference Article
Year 1993 Publication (down) Phonon Scattering in Condensed Matter VII. Springer Series in Solid-State Sciences Abbreviated Journal Phonon Scattering in Condensed Matter VII. Springer Series in Solid-State Sciences
Volume 112 Issue Pages 405-406
Keywords YBCO films
Abstract The nanosecond voltage response of YBaCuo films on Al2O3, MgO and ZrO2 substrates to electromagnetic radiation of millimeter and visible ranges has been investigated. The analysis of experimental conditions for Al2O3 and MgO substrates shows that the resistance change is monitored by the Kapitza boundary shift of temperature during the temporal interval ~ 100 ns limited by the time of phonon return from a substrate into a film. The observed exponential voltage decay is described by the phonon escape time which is proportional to the film thickness and is weakly temperature dependent.
Address
Corporate Author Thesis
Publisher Place of Publication Editor Meissner, M.; Pohl, R. O.
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference Seventh International Conference, Cornell University, Ithaca, New York, August 3-7, 1992
Notes Approved no
Call Number Serial 1665
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Author Verevkin, A.; Williams, C.; Gol’tsman, G. N.; Sobolewski, R.; Gilbert, G.
Title Single-photon superconducting detectors for practical high-speed quantum cryptography Type Miscellaneous
Year 2001 Publication (down) OFCC/ICQI Abbreviated Journal OFCC/ICQI
Volume Issue Pages Pa3
Keywords NbN SSPD, SNSPD, QKD, quantum cryptography
Abstract We have developed an ultrafast superconducting single-photon detector with negligible dark counting rate. The detector is based on an ultrathin, submicron-wide NbN meander-type stripe and can detect individual photons in the visible to near-infrared wavelength range at a rate of at least 10 Gb/s. The above counting rate allows us to implement the NbN device to unconditionally secret quantum key distRochester, New Yorkribution in a practical, high-speed system using real-time Vernam enciphering.
Address Rochester, New York
Corporate Author Thesis
Publisher Optical Society of America Place of Publication Editor
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Area Expedition Conference Optical Fiber Communication Conference and International Conference on Quantum Information
Notes -- from poster session. Approved no
Call Number Serial 1544
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Author Fiore, A.; Marsili, F.; Bitauld, D.; Gaggero, A.; Leoni, R.; Mattioli, F.; Divochiy, A.; Korneev, A.; Seleznev, V.; Kaurova, N.; Minaeva, O.; Gol’tsman, G.
Title Counting photons using a nanonetwork of superconducting wires Type Conference Article
Year 2009 Publication (down) Nano-Net Abbreviated Journal
Volume Issue Pages 120-122
Keywords SSPD, SNSPD
Abstract We show how the parallel connection of photo-sensitive superconducting nanowires can be used to count the number of photons in an optical pulse, down to the single-photon level. Using this principle we demonstrate photon-number resolving detectors with unprecedented sensitivity and speed at telecommunication wavelengths.
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Publisher Springer Berlin Heidelberg Place of Publication Berlin, Heidelberg Editor Cheng, M.
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 978-3-642-02427-6 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number 10.1007/978-3-642-02427-6_20 Serial 1242
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Author Shurakov, A.; Mikhalev, P.; Mikhailov, D.; Mityashkin, V.; Tretyakov, I.; Kardakova, A.; Belikov, I.; Kaurova, N.; Voronov, B.; Vasil’evskii, I.; Gol’tsman, G.
Title Ti/Au/n-GaAs planar Schottky diode with a moderately Si-doped matching sublayer Type Journal Article
Year 2018 Publication (down) Microelectronic Engineering Abbreviated Journal Microelectronic Engineering
Volume 195 Issue Pages 26-31
Keywords
Abstract In this paper, we report on the results of the study of the Ti/Au/n-GaAs planar Schottky diodes (PSD) intended for the wideband detection of terahertz radiation. The two types of the PSD devices were compared having either the dual n/n+ silicon dopant profile or the triple one with a moderately doped matching sublayer inserted. All the diodes demonstrated no noticeable temperature dependence of ideality factors and barrier heights, whose values covered the ranges of 1.15–1.50 and 0.75–0.85 eV, respectively. We observed the lowering of the flat band barrier height of ∼80 meV after introducing the matching sublayer into the GaAs sandwich. For both the devices types, the series resistance value as low as 20 Ω was obtained. To extract the total parasitic capacitance, we performed the Y-parameters analysis within the electromagnetic modeling of the PSD's behavior via the finite-element method. The capacitance values of 12–12.2 fF were obtained and further verified by measuring the diodes' response voltages in the frequency range of 400–480 GHz. We also calculated the AC current density distribution within the layered structures similar to those being experimentally studied. It was demonstrated that insertion of the moderately Si-doped matching sublayer might be beneficial for implementation of a PSD intended for the operation within the ‘super-THz’ frequency range.
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Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0167-9317 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number Serial 1155
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