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Author | Korneeva, Y.; Sidorova, M.; Semenov, A.; Krasnosvobodtsev, S.; Mitsen, K.; Korneev, A.; Chulkova, G.; Goltsman, G. | ||||
Title | Comparison of hot-spot formation in NbC and NbN single-photon detectors | Type | Journal Article | ||
Year | 2016 | Publication | IEEE Trans. Appl. Supercond. | Abbreviated Journal ![]() |
IEEE Trans. Appl. Supercond. |
Volume | 26 | Issue | 3 | Pages | 1-4 |
Keywords | NbC, NbN SSPD, SNSPD | ||||
Abstract | We report an experimental investigation of the hot-spot evolution in superconducting single-photon detectors made of disordered superconducting materials with different diffusivity and energy downconversion time values, i.e., 33-nm-thick NbN and 23-nm-thick NbC films. We have demonstrated that, in NbC film, only 405-nm photons produce sufficiently large hot spot to trigger a single-photon response. The dependence of detection efficiency on bias current for 405-nm photons in NbC is similar to that for 3400-nm photons in NbN. In NbC, large diffusivity and downconversion time result in 1-D critical current suppression profile compared with the usual 2-D profile in NbN. | ||||
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Series Volume | Series Issue | Edition | |||
ISSN | 1051-8223 | ISBN | Medium | ||
Area | Expedition | Conference | |||
Notes | Approved | no | |||
Call Number | Serial | 1348 | |||
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Author | Samsonova, A. S.; Zolotov, P. I.; Baeva, E. M.; Lomakin, A. I.; Titova, N. A.; Kardakova, A. I.; Goltsman, G. N. | ||||
Title | Signatures of surface magnetic disorder in niobium films | Type | Journal Article | ||
Year | 2021 | Publication | IEEE Trans. Appl. Supercond. | Abbreviated Journal ![]() |
IEEE Trans. Appl. Supercond. |
Volume | 31 | Issue | 5 | Pages | 1-5 |
Keywords | Nb films | ||||
Abstract | We present our studies on the evolution of the normal and superconducting properties with thickness of thin Nb films with a low level of non-magnetic disorder ( kFl≈150 for the thickest film in the set). The analysis of the superconducting behavior points to the presence of magnetic moments, hidden in the native oxide on the surface of Nb films. Using the Abrikosov-Gorkov theory, we obtain the density of surface magnetic moments of 1013 cm −2 , which is in agreement with the previously reported data for Nb films. | ||||
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ISSN | 1051-8223 | ISBN | Medium | ||
Area | Expedition | Conference | |||
Notes | Approved | no | |||
Call Number | Serial | 1792 | |||
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Author | Zhang, W.; Miao, W.; Li, S. L.; Zhou, K. M.; Shi, S. C.; Gao, J. R.; Goltsman, G. N. | ||||
Title | Measurement of the spectral response of spiral-antenna coupled superconducting hot electron bolometers | Type | Journal Article | ||
Year | 2013 | Publication | IEEE Trans. Appl. Supercond. | Abbreviated Journal ![]() |
IEEE Trans. Appl. Supercond. |
Volume | 23 | Issue | 3 | Pages | 2300804-2300804 |
Keywords | NbN HEB detector | ||||
Abstract | Measured spectral response of spiral-antenna coupled superconducting hot electron bolometers (HEBs) often drops dramatically at frequencies that are still within the frequency range of interest (e.g., ~ 5 THz). This is inconsistent with the implied low receiver noise temperatures from the same measurements. To understand this discrepancy, we exhaustively test and calibrate the thermal sources used in Fourier transform spectrometer measurements. We first investigate the absolute emission spectrum of high-pressure Hg arc lamp, then measure the spectral response of two spiral-antenna coupled NbN HEBs with a Martin-Puplett interferometer as spectrometer and 77 K blackbody as broadband signal source. The measured absolute emission spectrum of Hg arc lamp is proportional to frequency, corresponding to an equivalent blackbody temperature of 4000 K at 1 THz, 1500 K at 3 THz, and 800 K at 5 THz, respectively. Measured spectral response of spiral-antenna coupled NbN HEBs, corrected for air absorption, is nearly flat in the frequency range of 0.5-4 THz, consistent with simulated coupling efficiency between HEB and spiral-antenna. These results explain the discrepancy, and prove that spiral-antenna coupled superconducting NbN HEBs work well in a wide frequency range. In addition, this calibration method and these results are broadly applicable to other quasi-optical THz receivers. | ||||
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Language | Summary Language | Original Title | |||
Series Editor | Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 1051-8223 | ISBN | Medium | ||
Area | Expedition | Conference | |||
Notes | Approved | no | |||
Call Number | Serial | 1371 | |||
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Author | Baubert, J.; Salez, M.; Merkel, H.; Pons, P.; Cherednichenko, S.; Lecomte, B.; Drakinsky, V.; Goltsman, G.; Leone, B. | ||||
Title | IF gain bandwidth of membrane-based NbN hot electron bolometers for SHAHIRA | Type | Journal Article | ||
Year | 2005 | Publication | IEEE Trans. Appl. Supercond. | Abbreviated Journal ![]() |
IEEE Trans. Appl. Supercond. |
Volume | 15 | Issue | 2 | Pages | 507-510 |
Keywords | NbN HEB mixers, applications | ||||
Abstract | SHAHIRA (Submm Heterodyne Array for HIgh-speed Radio Astronomy) is a project supported by the European Space Agency (ESA) and is designed to fly on the SOFIA observatory. A quasi-optic design has been chosen for 2.5/2.7 THz and 4.7 THz, for hydroxyde radical OH, deuterated hydrogen HD and neutral atomic oxygen OI lines observations. Hot electron bolometers (HEBs) have been processed on 1 /spl mu/m thick SiO/sub 2//Si/sub 3/N/sub 4/ stress-less membranes. In this paper we analyse the intermediate frequency (IF) gain bandwidth from the theoretical point of view, and compare it to measurements. | ||||
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Language | Summary Language | Original Title | |||
Series Editor | Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 1558-2515 | ISBN | Medium | ||
Area | Expedition | Conference | |||
Notes | Approved | no | |||
Call Number | Serial | 1468 | |||
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Author | Jiang, L.; Li, J.; Zhang, W.; Yao, Q. J.; Lin, Z. L.; Shi, S. C.; Vachtomin, Y. B.; Antipov, S. V.; Svechnikov, S. I.; Voronov, B. M.; Goltsman, G. N. | ||||
Title | Characterization of NbN HEB mixers cooled by a close-cycled 4 Kelvin refrigerator | Type | Journal Article | ||
Year | 2005 | Publication | IEEE Trans. Appl. Supercond. | Abbreviated Journal ![]() |
IEEE Trans. Appl. Supercond. |
Volume | 15 | Issue | 2 | Pages | 511-513 |
Keywords | NbN HEB mixers | ||||
Abstract | It is quite beneficial to operate superconducting hot-electron-bolometer (HEB) mixers with a close-cycled 4 Kelvin refrigerator for real applications such as astronomy and atmospheric research. In this paper, a phononcooled NbN HEB mixer (quasioptical type) is thoroughly characterized under such a cooling circumstance. The effects of mechanical vibration, electrical interference, and temperature fluctuation of a two-stage Gifford-McMahon 4 Kelvin refrigerator upon the characteristics of the phononcooled NbN HEB mixer are investigated in particular. Detailed measurement results are presented. | ||||
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Series Volume | Series Issue | Edition | |||
ISSN | 1558-2515 | ISBN | Medium | ||
Area | Expedition | Conference | |||
Notes | Approved | no | |||
Call Number | Serial | 1469 | |||
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Author | Meledin, D.; Tong, C.-Y. E.; Blundell, R.; Goltsman, G. | ||||
Title | Measurement of intermediate frequency bandwidth of hot electron bolometer mixers at terahertz frequency range | Type | Journal Article | ||
Year | 2003 | Publication | IEEE Microw. Wireless Compon. Lett. | Abbreviated Journal ![]() |
IEEE Microw. Wireless Compon. Lett. |
Volume | 13 | Issue | 11 | Pages | 493-495 |
Keywords | waveguide NbN HEB mixers | ||||
Abstract | We have developed a new experimental setup for measuring the IF bandwidth of superconducting hot electron bolometer mixers. In our measurement system we use a chopped hot filament as a broadband signal source, and can perform a high-speed IF scan with no loss of accuracy when compared to coherent methods. Using this technique we have measured the 3 dB IF bandwidth of hot electron bolometer mixers, designed for THz frequency operation, and made from 3-4 nm thick NbN film deposited on an MgO buffer layer over crystalline quartz. | ||||
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Language | Summary Language | Original Title | |||
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Series Volume | Series Issue | Edition | |||
ISSN | 1531-1309 | ISBN | Medium | ||
Area | Expedition | Conference | |||
Notes | Approved | no | |||
Call Number | Serial | 1509 | |||
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Author | Minaeva, O.; Fraine, A.; Korneev, A.; Divochiy, A.; Goltsman, G.; Sergienko, A. | ||||
Title | High resolution optical time-domain reflectometry using superconducting single-photon detectors | Type | Conference Article | ||
Year | 2012 | Publication | Frontiers in Opt. 2012/Laser Sci. XXVIII | Abbreviated Journal ![]() |
Frontiers in Opt. 2012/Laser Sci. XXVIII |
Volume | Issue | Pages | Fw3a.39 | ||
Keywords | SSPD, SNSPD, Photodetectors; Fiber characterization; Light beams; Optical time domain reflectometry; Photon counting; Single mode fibers; Single photon detectors; Superconductors | ||||
Abstract | We discuss the advantages and limitations of single-photon optical time-domain reflectometry with superconducting single-photon detectors. The higher two-point resolution can be achieved due to superior timing performance of SSPDs in comparison with InGaAs APDs. | ||||
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Publisher | Optical Society of America | Place of Publication | Editor | ||
Language | Summary Language | Original Title | |||
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Area | Expedition | Conference | |||
Notes | Approved | no | |||
Call Number | Serial | 1237 | |||
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Author | Voevodin, E. I.; Gershenzon, E. M.; Goltsman, G. N.; Ptitsina, N. G.; Chulkova, G. M. | ||||
Title | Capture of free holes by charged acceptors in uniaxially deformed Ge | Type | Journal Article | ||
Year | 1988 | Publication | Fizika i Tekhnika Poluprovodnikov | Abbreviated Journal ![]() |
Fizika i Tekhnika Poluprovodnikov |
Volume | 22 | Issue | 3 | Pages | 540-543 |
Keywords | Ge, free holes, capture | ||||
Abstract | Цель настоящей работы — исследование кинетики примесной фотопроводимости p-Ge при сильном одноосном сжатии в широком диапазоне изменения интенсивности примесного подсвета, создающего свободные дырки, и определение сечения каскадного захвата дырок на мелкие заряженные акцепторы в условиях преобладания электрон-фононного механизма потерь энергии. | ||||
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Language | Russian | Summary Language | Original Title | ||
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Notes | Захват свободных дырок заряженными акцепторами в одноосно деформированном Ge | Approved | no | ||
Call Number | Serial | 1698 | |||
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Author | Tiulina, V.; Iomdina, E.; Goltsman, G.; Seliverstov, S.; Sianosyan, A.; Teplyakova, K.; Rusova, A.; Zaitsev, S.; Zernii, E.; Senin, I. | ||||
Title | UVB promotes the initiation of uveitic inflammatory and changes in thehydration of the cornea in vivo | Type | Miscellaneous | ||
Year | 2019 | Publication | FEBS Open Bio | Abbreviated Journal ![]() |
FEBS Open Bio |
Volume | 9 | Issue | S1 | Pages | 79 |
Keywords | medicine; scheimpflug imaging; UVB; confocal microscopy; cornea; optical coherent tomography; rabbit eyes; terahertz radiation | ||||
Abstract | Recently, active research has been conducted in the field of terahertz (THz) scanning of human tissues for noninvasive determination of their hydration level, which haves hown high diagnostic efficiency of this technology in various pathological conditions. Recently, we have developed a laboratory model of the facility for monitoring the state of the water balance of the cornea using THz scanning in vivo, which opens up the possibility of applying this approach in ophthalmology. The aim of the work wasto compare the results of the THz scan of the cornea with its clinical changes using the example of an experimental model of the UV induced keratouveitis. Anexperimental study, which included a comprehensive assessment of clinical changes in the cornea of rabbits during keratouveitis induction, revealed a decrease in the stability of the tear film, pathological changes in the corneal epithelium and stroma, as well as its anatomical and optical parameters. Comparison of data obtained in the THz scan of the cornea with tears production, optical coherence tomography and confocal microscopy showed their consistency in all observation periods, which allows us to conclude that the developed laboratory setup works and the feasibility of further research to promote the corneal hydration evaluation technology in clinical practice. Acknowledgements: Research was funded by the RSF, grant number 161500255. | ||||
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Series Volume | Series Issue | Edition | |||
ISSN | 2211-5463 | ISBN | Medium | ||
Area | Expedition | Conference | |||
Notes | Poster P-01-040 | Approved | no | ||
Call Number | Serial | 1276 | |||
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Author | Wild, W.; Kardashev, N. S.; Likhachev, S. F.; Babakin, N. G.; Arkhipov, V. Y.; Vinogradov, I. S.; Andreyanov, V. V.; Fedorchuk, S. D.; Myshonkova, N. V.; Alexsandrov, Y. A.; Novokov, I. D.; Goltsman, G. N.; Cherepaschuk, A. M.; Shustov, B. M.; Vystavkin, A. N.; Koshelets, V. P.; Vdovin, V.F.; de Graauw, T.; Helmich, F.; vd Tak, F.; Shipman, R.; Baryshev, A.; Gao, J. R.; Khosropanah, P.; Roelfsema, P.; Barthel, P.; Spaans, M.; Mendez, M.; Klapwijk, T.; Israel, F.; Hogerheijde, M.; vd Werf, P.; Cernicharo, J.; Martin-Pintado, J.; Planesas, P.; Gallego, J. D.; Beaudin, G.; Krieg, J. M.; Gerin, M.; Pagani, L.; Saraceno, P.; Di Giorgio, A. M.; Cerulli, R.; Orfei, R.; Spinoglio, L.; Piazzo, L.; Liseau, R.; Belitsky, V.; Cherednichenko, S.; Poglitsch, A.; Raab, W.; Guesten, R.; Klein, B.; Stutzki, J.; Honingh, N.; Benz, A.; Murphy, A.; Trappe, N.; Räisänen, A. | ||||
Title | Millimetron—a large Russian-European submillimeter space observatory | Type | Journal Article | ||
Year | 2009 | Publication | Exp. Astron. | Abbreviated Journal ![]() |
Exp. Astron. |
Volume | 23 | Issue | 1 | Pages | 221-244 |
Keywords | Millimetron space observatory, VLBI, very long baseline interferometry | ||||
Abstract | Millimetron is a Russian-led 12 m diameter submillimeter and far-infrared space observatory which is included in the Space Plan of the Russian Federation for launch around 2017. With its large collecting area and state-of-the-art receivers, it will enable unique science and allow at least one order of magnitude improvement with respect to the Herschel Space Observatory. Millimetron will be operated in two basic observing modes: as a single-dish observatory, and as an element of a ground-space very long baseline interferometry (VLBI) system. As single-dish, angular resolutions on the order of 3 to 12 arc sec will be achieved and spectral resolutions of up to a million employing heterodyne techniques. As VLBI antenna, the chosen elliptical orbit will provide extremely large VLBI baselines (beyond 300,000 km) resulting in micro-arc second angular resolution. | ||||
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Series Volume | Series Issue | Edition | |||
ISSN | 0922-6435 | ISBN | Medium | ||
Area | Expedition | Conference | |||
Notes | Approved | no | |||
Call Number | Serial | 1402 | |||
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Author | Elezov, M. S.; Ozhegov, R. V.; Goltsman, G. N.; Makarov, V. | ||||
Title | Development of the experimental setup for investigation of latching of superconducting single-photon detector caused by blinding attack on the quantum key distribution system | Type | Conference Article | ||
Year | 2017 | Publication | EPJ Web of Conferences | Abbreviated Journal ![]() |
EPJ Web of Conferences |
Volume | 132 | Issue | 2 | Pages | 2 |
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Abstract | Recently bright-light control of the SSPD has been demonstrated. This attack employed a “backdoor†in the detector biasing scheme. Under bright-light illumination, SSPD becomes resistive and remains “latched†in the resistive state even when the light is switched off. While the SSPD is latched, Eve can simulate SSPD single-photon response by sending strong light pulses, thus deceiving Bob. We developed the experimental setup for investigation of a dependence on latching threshold of SSPD on optical pulse length and peak power. By knowing latching threshold it is possible to understand essential requirements for development countermeasures against blinding attack on quantum key distribution system with SSPDs. |
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Notes | Approved | no | |||
Call Number | RPLAB @ kovalyuk @ | Serial | 1116 | ||
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Author | Goltsman, G. N.; Samartsev, V. V.; Vinogradov, E. A.; Naumov, A. V.; Karimullin, K. R. | ||||
Title | New generation of superconducting nanowire single-photon detectors | Type | Conference Article | ||
Year | 2015 | Publication | EPJ Web of Conferences | Abbreviated Journal ![]() |
EPJ Web of Conferences |
Volume | 103 | Issue | Pages | 01006 (1 to 2) | |
Keywords | SSPD, SNSPD | ||||
Abstract | We present an overview of recent results for new generation of infrared and optical superconducting nanowire single-photon detectors (SNSPDs) that has already demonstrated a performance that makes them devices-of-choice for many applications. SNSPDs provide high efficiency for detecting individual photons while keeping dark counts and timing jitter minimal. Besides superior detection performance over a broad optical bandwidth, SNSPDs are also compatible with an integrated optical platform as a crucial requirement for applications in emerging quantum photonic technologies. By embedding SNSPDs in nanophotonic circuits we realize waveguide integrated single photon detectors which unite all desirable detector properties in a single device. | ||||
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Series Volume | Series Issue | Edition | |||
ISSN | 2100-014X | ISBN | Medium | ||
Area | Expedition | Conference | |||
Notes | Approved | no | |||
Call Number | Serial | 1349 | |||
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Author | Florya, I. N.; Korneeva, Y. P.; Sidorova, M. V.; Golikov, A. D.; Gaiduchenko, I. A.; Fedorov, G. E.; Korneev, A. A.; Voronov, B. M.; Goltsman, G. N.; Samartsev, V. V.; Vinogradov, E. A.; Naumov, A. V.; Karimullin, K. R. | ||||
Title | Energy relaxtation and hot spot formation in superconducting single photon detectors SSPDs | Type | Conference Article | ||
Year | 2015 | Publication | EPJ Web of Conferences | Abbreviated Journal ![]() |
EPJ Web of Conferences |
Volume | 103 | Issue | Pages | 10004 (1 to 2) | |
Keywords | SSPD, SNSPD | ||||
Abstract | We have studied the mechanism of energy relaxation and resistive state formation after absorption of a single photon for different wavelengths and materials of single photon detectors. Our results are in good agreement with the hot spot model. | ||||
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Series Volume | Series Issue | Edition | |||
ISSN | 2100-014X | ISBN | Medium | ||
Area | Expedition | Conference | |||
Notes | Approved | no | |||
Call Number | Serial | 1351 | |||
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Author | Fedorov, G. E.; Gaiduchenko, I. A.; Golikov, A. D.; Rybin, M. G.; Obraztsova, E. D.; Voronov, B. M.; Coquillat, D.; Diakonova, N.; Knap, W.; Goltsman, G. N.; Samartsev, V. V.; Vinogradov, E. A.; Naumov, A. V.; Karimullin, K. R. | ||||
Title | Response of graphene based gated nanodevices exposed to THz radiation | Type | Conference Article | ||
Year | 2015 | Publication | EPJ Web of Conferences | Abbreviated Journal ![]() |
EPJ Web of Conferences |
Volume | 103 | Issue | Pages | 10003 (1 to 2) | |
Keywords | graphene field-effect transistor, FET | ||||
Abstract | In this work we report on the response of asymmetric graphene based devices to subterahertz and terahertz radiation. Our devices are made in a configuration of a field-effect transistor with conduction channel between the source and drain electrodes formed with a CVD-grown graphene. The radiation is coupled through a spiral antenna to source and top gate electrodes. Room temperature responsivity of our devices is close to the values that are attractive for commercial applications. Further optimization of the device configuration may result in appearance of novel terahertz radiation detectors. | ||||
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Series Volume | Series Issue | Edition | |||
ISSN | 2100-014X | ISBN | Medium | ||
Area | Expedition | Conference | |||
Notes | Approved | no | |||
Call Number | Serial | 1350 | |||
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Author | Lobanov, Y. V.; Shcherbatenko, M. L.; Semenov, A. V.; Kovalyuk, V. V.; Korneev, A. A.; Goltsman, G. N.; Vinogradov, E. A.; Naumov, A. V.; Gladush, M. G.; Karimullin, K. R. | ||||
Title | Heterodyne spectroscopy with superconducting single-photon detector | Type | Conference Article | ||
Year | 2017 | Publication | EPJ Web Conf. | Abbreviated Journal ![]() |
EPJ Web Conf. |
Volume | 132 | Issue | Pages | 01005 | |
Keywords | SSPD mixer, SNSPD | ||||
Abstract | We demonstrate successful operation of a Superconducting Single Photon Detector (SSPD) as the core element in a heterodyne receiver. Irradiating the SSPD by both a local oscillator power and signal power simultaneously, we observed beat signal at the intermediate frequency of a few MHz. Gain bandwidth was found to coincide with the detector single pulse width, where the latter depends on the detector kinetic inductance, determined by the superconducting nanowire length. | ||||
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Series Volume | Series Issue | Edition | |||
ISSN | 2100-014X | ISBN | Medium | ||
Area | Expedition | Conference | |||
Notes | Approved | no | |||
Call Number | Serial | 1205 | |||
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