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Author Гершензон, Е. М.
Title Воздействие электромагнитного излучения на сверхпроводящую плёнку ниобия в резистивном состоянии Type Conference Article
Year 1982 Publication Тезисы докладов 22 Всесоюзной конференции по физике низких температур Abbreviated Journal
Volume Issue (up) Pages 79-80
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Language russian Summary Language Original Title
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Notes Approved no
Call Number Serial 231
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Author Karasik, B. S.; Elantiev, A. I.
Title Analysis of the noise performance of a hot-electron superconducting bolometer mixer Type Conference Article
Year 1995 Publication Proc. 6th Int. Symp. Space Terahertz Technol. Abbreviated Journal Proc. 6th Int. Symp. Space Terahertz Technol.
Volume Issue (up) Pages 229-246
Keywords HEB mixers
Abstract A theoretical analysis for the noise temperature of hot–electron superconducting mixer has been presented. Thecontributions of both Johnson noise and electron temperature fluctuations have been evaluated. A set of criteriaensuring low noise performance of the mixer has been stated and a simple analytic expression for the noisetemperature of the mixer device has been suggested. It has been shown that an improvement of the mixer sensitivitydoes not necessarily follow by a decrease of the bandwidth. An SSB noise temperature limit due to the intrinsic noisemechanisms has been estimated to be as low as 40–90 K for a mixer device made from Nb or NbN thin film.Furthermore, the conversion gain bandwidth can be as wide as is allowed by the intrinsic electron temperaturerelaxation time if an appropriate choice of the mixer resistance has been made. The intrinsic mixer noise bandwidthis of 3 GHz for Nb device and of 5 GHz for NbN device. An additional improvement of the theory has been madewhen a distinction between the impedance measured at high intermediate frequency (larger than the mixerbandwidth) and the mixer ohmic resistance has been taken into account.Recently obtained experimental data on Nb and NbNbolometer mixer devices are viewed in connection with thetheoretical predictions.The noise temperature limit has also been specified for the mixer device where an outdiffusion coolingmechanism rather than the electron–phonon energy relaxation determines the mixer bandwidth. A consideration ofthe noise performance of a bolometer mixer made from YBaCuO film utilizing a hot–electron effect has been done.
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Corporate Author Thesis
Publisher Place of Publication Pasadena, Ca Editor
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Notes Approved no
Call Number Serial 258
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Author Gershenson, M. E.; Gong, D.; Sato, T.; Karasik, B. S.; Sergeev, A. V.
Title Millisecond electron-phonon relaxation in ultrathin disordered metal films at millikelvin temperatures Type Journal Article
Year 2001 Publication Appl. Phys. Lett. Abbreviated Journal
Volume 79 Issue (up) Pages 2049-2051
Keywords HEB detector, FIR, far infrared
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Notes Approved no
Call Number RPLAB @ s @ heb_eph_interaction_Gershenzon Serial 315
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Author Корнеев, Александр Александрович
Title Квантовая эффективность и темновой счет NbN сверхпроводникового инфракрасного однофотонного детектора Type Manuscript
Year 2006 Publication М. МПГУ Abbreviated Journal
Volume Issue (up) Pages
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Corporate Author Thesis Ph.D. thesis
Publisher Place of Publication Editor
Language Russian Summary Language Original Title
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Notes Approved no
Call Number Serial 480
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Author Масленников, Сергей Николаевич
Title Смесители на эффекте электронного разогрева для терагерцового и инфракрасного диапазонов Type Manuscript
Year 2007 Publication М. МПГУ Abbreviated Journal
Volume Issue (up) Pages
Keywords HEB, detector, mixer, terahertz, THz, infrared, IR, direct detection effect, conversion loss
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Corporate Author Thesis Ph.D. thesis
Publisher Place of Publication Editor
Language Russian Summary Language Original Title
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Notes Approved no
Call Number Serial 481
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Author Cao, Aiqin; Jiang, L.; Chen, S.H.; Antipov, S.V.; Shi, S.C.
Title IF gain bandwidth of a quasi-optical NbN superconducting HEB mixer Type Conference Article
Year 2007 Publication Proc. International conference on microwave and millimeter wave technology Abbreviated Journal Proc. ICMMT
Volume Issue (up) Pages 1-3
Keywords HEB, mixer, gain bandwidth
Abstract In this paper, the intermediate frequency (IF) gain bandwidth of a quasi-optical NbN superconducting hot-electron bolometer (HEB) mixer is investigated at 500 GHz with an IF system incorporating with a frequency down-converting scheme which is able to sweep the IF signal in a frequency range of 0.3-4 GHz. The IF gain bandwidth of the device is measured to be 1.5 GHz when it is biased at a voltage of the minimum noise temperature, and becomes larger when the bias voltage increases.
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Corporate Author Thesis
Publisher Place of Publication Builin Editor
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Notes Approved no
Call Number RPLAB @ lobanovyury @ Serial 575
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Author Финкель, М. И.
Title Терагерцовые смесители на эффекте электронного разогрева в ультратонких плёнках NbN и NbTiN Type Manuscript
Year 2006 Publication М. МПГУ Abbreviated Journal
Volume Issue (up) Pages
Keywords HEB, detector, mixer, terahertz, THz, infrared, IR, direct detection effect, conversion bandwidth, conversion loss
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Corporate Author Thesis Ph.D. thesis
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Notes Approved no
Call Number Serial 597
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Author Рябчун, С. А.
Title Широкополосные высокостабильные терагерцовые смесители на горячих электронах из тонких сверхпроводниковых пленок NbN Type Manuscript
Year 2009 Publication М. МПГУ Abbreviated Journal
Volume Issue (up) Pages 98
Keywords HEB, mixer, terahertz, THz, stability, Allan variance, conversion bandwidth, in-situ technique, Au contacts
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Corporate Author Thesis Ph.D. thesis
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Notes Approved no
Call Number Serial 598
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Author Морозов, Дмитрий Владимирович
Title Приемные устройства терагерцового диапазона на эффекте разогрева двумерного электронного газа в гетероструктурах AlGaAs/GaAs Type Manuscript
Year 2007 Publication М. МПГУ Abbreviated Journal
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Corporate Author Thesis Ph.D. thesis
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Notes Approved no
Call Number RPLAB @ s @ Serial 626
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Author Korneev, Alexander; Korneeva, Yulia; Florya, Irina; Elezov, Michael; Manova, Nadezhda; Tarkhov, Michael; An, Pavel; Kardakova, Anna; Isupova, Anastasiya; Chulkova, Galina; Voronov, Boris
Title Recent advances in superconducting NbN single-photon detector development Type Conference Article
Year 2011 Publication Proc. SPIE Abbreviated Journal Proc. SPIE
Volume 8072 Issue (up) Pages 807202 (1 to 10)
Keywords SSPD
Abstract Superconducting single-photon detector (SSPD) is a planar nanostructure patterned from 4-nm-thick NbN film deposited on sapphire substrate. The sensitive element of the SSPD is 100-nm-wide NbN strip. The device is operated at liquid helium temperature. Absorption of a photon leads to a local suppression of superconductivity producing subnanosecond-long voltage pulse. In infrared (at 1550 nm and longer wavelengths) SSPD outperforms avalanche photodiodes in terms of detection efficiency (DE), dark counts rate, maximum counting rate and timing jitter. Efficient single-mode fibre coupling of the SSPD enabled its usage in many applications ranging from single-photon sources research to quantum cryptography. Recently we managed to improve the SSPD performance and measured 25% detection efficiency at 1550 nm wavelength and dark counts rate of 10 s-1. We also improved photon-number resolving SSPD (PNR-SSPD) which realizes a spatial multiplexing of incident photons enabling resolving of up to 4 simultaneously absorbed photons. Another improvement is the increase of the photon absorption using a λ/4 microcavity integrated with the SSPD. And finally in our strive to increase the DE at longer wavelengths we fabricated SSPD with the strip almost twice narrower compared to the standard 100 nm and demonstrated that in middle infrared (about 3 μm wavelength) these devices have DE several times higher compared to the traditional SSPDs.
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Call Number RPLAB @ gujma @ Serial 663
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