| Records |
| Author |
Райтович, А. А.; Пентин, И. В.; Золотов, Ф. И.; Селезнев, В. А.; Вахтомин, Ю. Б.; Смирнов, К. В. |
| Title |
Время энергетической релаксации электронов в сверхпроводниковых VN наноструктурах |
Type |
Conference Article |
| Year |
2018 |
Publication |
Сборник трудов 13 Всероссийской конференции молодых ученых |
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Pages |
236-238 |
| Keywords |
VN films |
| Abstract |
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| Address |
Саратовский филиал ИРЭ им. В.А. Котельникова РАН |
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Техно-Декор |
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| Language |
Russian |
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Наноэлектроника, нанофотоника и нелинейная физика |
| Notes |
http://nnnph.ru/data/documents/Sborni-trudov-NNNF-2018.pdf |
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Serial |
1807 |
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| Author |
Смирнов, К. В. |
| Title |
AlGaAs/GaAs смеситель на эффекте разогрева двумерных электронов для тепловизора субмиллиметрового диапазона |
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Abstract |
| Year |
2003 |
Publication |
Тезисы докладов VI Российской конференции по физике полупроводников |
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Issue |
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Pages |
181 |
| Keywords |
2DEG, AlGaAs/GaAs heterostructures, mixer |
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ФТИ им. А. Ф. Иоффе, Санк-Петербург |
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VI Российской конференции по физике полупроводников (27-31 октября) |
| Notes |
Unconfirmed; Сама конференция, однако, была -- её упоминают: [http://www.nsc.ru/HBC/article.phtml?nid=271&id=17], [https://www.isp.nsc.ru/institut/nauchnye-podrazdeleniya/lab-20/publikatsii/2003], [http://www.ioffe.ru/sem_tech/sem%5Fteh%5Fmovpe%5Fpublications%5Fru.htm#R2003], [https://istina.ips.ac.ru/collections/828771/] |
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1837 |
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| Author |
Sergeev, A. V.; Livanov, D. V. |
| Title |
Phonon renormalization of thermoelectric power of high-Tc materials |
Type |
Conference Article |
| Year |
1993 |
Publication |
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 |
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Pages |
204-205 |
| Keywords |
HTS, YBCO |
| Abstract |
Renormalization of thermoelectric power due to Nielsen — Taylor effect (interference between electron-phonon and electron- impurity interactions) is used for the explanation of the temperature dependence and sign of the thermopower in high-Tc materials. In the framework of the model the negative sign of TEP of untwinned YBa2Cu3O7−x crystal in a-direction observed by Howson et. al. is connected to the strong hole scattering via O-vacancies in chains. |
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Meissner, M.; Pohl, R. O. |
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Seventh International Conference, Cornell University, Ithaca, New York, August 3-7, 1992 |
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1664 |
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| Author |
Korneev, A. A. |
| Title |
Superconducting NbN microstrip single-photon detectors |
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Abstract |
| Year |
2021 |
Publication |
Proc. Quantum Optics and Photon Counting |
Abbreviated Journal |
Proc. Quantum Optics and Photon Counting |
| Volume |
11771 |
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Pages |
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| Keywords |
NbN SSPD, SNSPD |
| Abstract |
Superconducting Single-Photon Detectors (SSPD) invented two decades ago have evolved to a mature technology and have become devices of choice in the advanced applications of quantum optics, such as quantum cryptography and optical quantum computing. In these applications SSPDs are coupled to single-mode fibers and feature almost unity detection efficiency, negligible dark counts, picosecond timing jitter and MHz photon count rate. Meanwhile, there are great many applications requiring coupling to multi-mode fibers or free space. ‘Classical’ SSPDs with 100-nm-wide superconducting strip and covering area of about 100 µm2 are not suitable for further scaling due to degradation of performance and low fabrication yield. Recently we have demonstrated single-photon counting in micron-wide superconducting bridges and strips. Here we present our approach to the realization of practical photon-counting detectors of large enough area to be efficiently coupled to multi-mode fibers or free space. The detector is either a meander or a spiral of 1-µm-wide strip covering an area of 50x50 µm2. Being operated at 1.7K temperature it demonstrates the saturated detection efficiency (i.e. limited by the absorption in the detector) up to 1550 nm wavelength, about 10 ns dead time and timing jitter in range 50-100 ps. |
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SPIE |
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Prochazka, I.; Štefaňák, M.; Sobolewski, R.; Gábris, A. |
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Quantum Optics and Photon Counting; SPIE Optics + Optoelectronics, 2021, Online Only |
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no |
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Serial |
1784 |
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| Author |
Moshkova, M. A.; Morozov, P. V.; Antipov, A. V.; Vakhtomin, Y. B.; Smirnov, K. V. |
| Title |
High-efficiency multi-element superconducting single-photon detector |
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Conference Article |
| Year |
2021 |
Publication |
Proc. SPIE |
Abbreviated Journal |
Proc. SPIE |
| Volume |
11771 |
Issue |
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Pages |
2-8 |
| Keywords |
PNR SSPD, large active area, detection efficiency |
| Abstract |
We present the result of the creation and investigation of the multi-element superconducting single photon detectors, which can recognize the number of photons (up to six) in a short pulse of the radiation at telecommunication wavelengths range. The best receivers coupled with single-mode fiber have the system quantum efficiency of ⁓85%. The receivers have a 100 ps time resolution and a few nanoseconds dead time that allows them to operate at megahertz counting rate. Implementation of the multi-element architecture for creation of the superconducting single photon detectors with increased sensitive area allows to create the high efficiency receivers coupled with multi-mode fibers and with preserving of the all advantages of superconducting photon counters. |
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SPIE |
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Prochazka, I.; Štefaňák, M.; Sobolewski, R.; Gábris, A. |
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Quantum Optics and Photon Counting |
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1795 |
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Schroeder, E.; Mauskopf, P.; Pilyavsky, G.; Sinclair, A.; Smith, N.; Bryan, S.; Mani, H.; Morozov, D.; Berggren, K.; Zhu, D.; Smirnov, K.; Vakhtomin, Y. |
| Title |
On the measurement of intensity correlations from laboratory and astronomical sources with SPADs and SNSPDs |
Type |
Conference Article |
| Year |
2016 |
Publication |
Proc. SPIE |
Abbreviated Journal |
Proc. SPIE |
| Volume |
9907 |
Issue |
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Pages |
99070P (1 to 13) |
| Keywords |
SPAD, NbN SSPD applications, SNSPD |
| Abstract |
We describe the performance of detector modules containing silicon single photon avalanche photodiodes (SPADs) and superconducting nanowire single photon detectors (SNSPDs) to be used for intensity interferometry. The SPADs are mounted in fiber-coupled and free-space coupled packages. The SNSPDs are mounted in a small liquid helium cryostat coupled to single mode fiber optic cables which pass through a hermetic feed-through. The detectors are read out with microwave amplifiers and FPGA-based coincidence electronics. We present progress on measurements of intensity correlations from incoherent sources including gas-discharge lamps and stars with these detectors. From the measured laboratory performance of the correlation system, we estimate the sensitivity to intensity correlations from stars using commercial telescopes and larger existing research telescopes. |
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SPIE |
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Malbet, F.; Creech-Eakman, M.J.; Tuthill, P.G. |
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Optical and Infrared Interferometry and Imaging V |
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no |
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1809 |
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Kuznetsov, K. A.; Kornienko, V. V.; Vakhtomin, Y. B.; Pentin, I. V.; Smirnov, K. V.; Kitaeva, G. K. |
| Title |
Generation and detection of optical-terahertz biphotons via spontaneous parametric downconversion |
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Conference Article |
| Year |
2018 |
Publication |
Proc. ICLO |
Abbreviated Journal |
Proc. ICLO |
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Issue |
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Pages |
303 |
| Keywords |
NbN HEB applications |
| Abstract |
We study spontaneous parametric downconversion (SPDC) in the strongly non-degenerate regime when the idler wave hits the terahertz range. By using the hot-electron bolometer, for the first time the SPDC-generated idler-wave photons were directly detected in the terahertz frequency range. Spectrum of corresponding signal photons was measured using standard technique by the CCD camera. Possible applications of correlated optical-terahertz biphotons are discussed. |
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International Conference Laser Optics |
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no |
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1806 |
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Lobanov, Y. V.; Vakhtomin, Y. B.; Pentin, I. V.; Khabibullin, R. A.; Shchavruk, N. V.; Smirnov, K. V.; Silaev, A. A. |
| Title |
Characterization of the THz quantum cascade laser using fast superconducting hot electron bolometer |
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Journal Article |
| Year |
2018 |
Publication |
EPJ Web Conf. |
Abbreviated Journal |
EPJ Web Conf. |
| Volume |
195 |
Issue |
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Pages |
04004 (1 to 2) |
| Keywords |
NbN HEB, QCL |
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2100-014X |
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3rd International Conference “Terahertz and Microwave Radiation: Generation, Detection and Applications” (TERA-2018) |
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1808 |
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| Author |
Гершензон, Е. М. |
| Title |
Воздействие электромагнитного излучения на сверхпроводящую плёнку ниобия в резистивном состоянии |
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Conference Article |
| Year |
1982 |
Publication |
Тезисы докладов 22 Всесоюзной конференции по физике низких температур |
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79-80 |
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russian |
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no |
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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 |
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Conference Article |
| Year |
1995 |
Publication |
Proc. 6th Int. Symp. Space Terahertz Technol. |
Abbreviated Journal |
Proc. 6th Int. Symp. Space Terahertz Technol. |
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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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Pasadena, Ca |
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258 |
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