Records |
Author |
Tarkhov, M.; Claudon, J.; Poizat, J. Ph.; Korneev, A.; Divochiy, A.; Minaeva, O.; Seleznev, V.; Kaurova, N.; Voronov, B.; Semenov, A. V.; Gol'tsman, G. |
Title |
Ultrafast reset time of superconducting single photon detectors |
Type |
Journal Article |
Year |
2008 |
Publication |
Appl. Phys. Lett. |
Abbreviated Journal |
Appl. Phys. Lett. |
Volume |
92 |
Issue |
24 |
Pages |
241112 (1 to 3) |
Keywords |
SSPD, SNSPD |
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0003-6951 |
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429 |
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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 |
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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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ISSN |
2100-014X |
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1205 |
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Author |
Korneev, A. A.; Divochiy, A. V.; Vakhtomin, Yu. B.; Korneeva, Yu. P.; Larionov, P. A.; Manova, N. N.; Florya, I. N.; Trifonov, A. V.; Voronov, B. M.; Smirnov, K. V.; Semenov, A. V.; Chulkova, G. M.; Goltsman, G. N. |
Title |
IR single-photon receiver based on ultrathin NbN superconducting film |
Type |
Journal Article |
Year |
2013 |
Publication |
Rus. J. Radio Electron. |
Abbreviated Journal |
Rus. J. Radio Electron. |
Volume |
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Issue |
5 |
Pages |
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Keywords |
SSPD, SNSPD |
Abstract |
We present our recent results in research and development of superconducting single-photon detector (SSPD). We achieved the following performance improvement: first, we developed and characterized SSPD integrated in optical cavity and enabling its illumination from the face side, not through the substrate, second, we improved the quantum efficiency of the SSPD at around 3 μm wavelength by reduction of the strip width to 40 nm, and, finally, we improved the detection efficiency of the SSPD-based single-photon receiver system up to 20% at 1550 nm and extended its wavelength range beyond 1800 nm by the usage of the fluoride ZBLAN fibres. |
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Russian |
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8 pages |
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no |
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RPLAB @ sasha @ korneevir |
Serial |
1043 |
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Semenov, A. V.; Devyatov, I. A.; Ryabchun, S. A.; Maslennikov, S. N.; Maslennikova, A. S.; Larionov, P. A.; Voronov, B. M.; Chulkova, G. M. |
Title |
Absorption of terahertz electromagnetic radiation in dirty superconducting film at arbitrary type of the spectral functions |
Type |
Journal Article |
Year |
2011 |
Publication |
Rus. J. Radio Electron. |
Abbreviated Journal |
Rus. J. Radio Electron. |
Volume |
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Issue |
10 |
Pages |
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Keywords |
terahertz electromagnetic radiation; superconductors; detectors of terahertz range |
Abstract |
A problem of absorption of high-frequency electromagnetic field in dirty superconductor is treated within Keldysh technic. Expression for the source term in the kinetic equation for quasiparticle distribution function is derived. The result is significant for deriving a consistent microscopic theory of superconducting detectors for terahertz frequency range, perspective detectors on kinetic inductance of current-biased superconducting strip and on Josephson inductance of tunnel. |
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7 pages |
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no |
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Serial |
1117 |
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Author |
Baeva, E. M.; Titova, N. A.; Veyrat, L.; Sacépé, B.; Semenov, A. V.; Goltsman, G. N.; Kardakova, A. I.; Khrapai, V. S. |
Title |
Thermal relaxation in metal films bottlenecked by diffuson lattice excitations of amorphous substrates |
Type |
Miscellaneous |
Year |
2021 |
Publication |
arXiv |
Abbreviated Journal |
arXiv |
Volume |
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Pages |
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Keywords |
metal films, NbN, InOx, Au/Ni, thermal relaxation |
Abstract |
Here we examine the role of the amorphous insulating substrate in the thermal relaxation in thin NbN, InOx, and Au/Ni films at temperatures above 5 K. The studied samples are made up of metal bridges on an amorphous insulating layer lying on or suspended above a crystalline substrate. Noise thermometry was used to measure the electron temperature Te of the films as a function of Joule power per unit of area P2D. In all samples, we observe the dependence P2D∝Tne with the exponent n≃2, which is inconsistent with both electron-phonon coupling and Kapitza thermal resistance. In suspended samples, the functional dependence of P2D(Te) on the length of the amorphous insulating layer is consistent with the linear T-dependence of the thermal conductivity, which is related to lattice excitations (diffusons) for the phonon mean free path smaller than the dominant phonon wavelength. Our findings are important for understanding the operation of devices embedded in amorphous dielectrics. |
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no |
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Serial |
1163 |
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