| Records |
| 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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2100-014X |
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1205 |
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Vorobyov, V. V.; Kazakov, A. Y.; Soshenko, V. V.; Korneev, A. A.; Shalaginov, M. Y.; Bolshedvorskii, S. V.; Sorokin, V. N.; Divochiy, A. V.; Vakhtomin, Y. B.; Smirnov, K. V.; Voronov, B. M.; Shalaev, V. M.; Akimov, A. V.; Goltsman, G. N. |
| Title |
Superconducting detector for visible and near-infrared quantum emitters [Invited] |
Type |
Journal Article |
| Year |
2017 |
Publication |
Opt. Mater. Express |
Abbreviated Journal |
Opt. Mater. Express |
| Volume |
7 |
Issue |
2 |
Pages |
513-526 |
| Keywords |
SSPD, SNSPD |
| Abstract |
Further development of quantum emitter based communication and sensing applications intrinsically depends on the availability of robust single-photon detectors. Here, we demonstrate a new generation of superconducting single-photon detectors specifically optimized for the 500–1100 nm wavelength range, which overlaps with the emission spectrum of many interesting solid-state atom-like systems, such as nitrogen-vacancy and silicon-vacancy centers in diamond. The fabricated detectors have a wide dynamic range (up to 350 million counts per second), low dark count rate (down to 0.1 counts per second), excellent jitter (62 ps), and the possibility of on-chip integration with a quantum emitter. In addition to performance characterization, we tested the detectors in real experimental conditions involving nanodiamond nitrogen-vacancy emitters enhanced by a hyperbolic metamaterial. |
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| ISSN |
2159-3930 |
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no |
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1234 |
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Arutyunov, K. Y.; Ramos-Alvarez, A.; Semenov, A. V.; Korneeva, Y. P.; An, P. P.; Korneev, A. A.; Murphy, A.; Bezryadin, A.; Gol'tsman, G. N. |
| Title |
Superconductivity in highly disordered NbN nanowires |
Type |
Journal Article |
| Year |
2016 |
Publication |
Nanotechnol. |
Abbreviated Journal |
Nanotechnol. |
| Volume |
27 |
Issue |
47 |
Pages |
47lt02 (1 to 8) |
| Keywords |
NbN nanowires |
| Abstract |
The topic of superconductivity in strongly disordered materials has attracted significant attention. These materials appear to be rather promising for fabrication of various nanoscale devices such as bolometers and transition edge sensors of electromagnetic radiation. The vividly debated subject of intrinsic spatial inhomogeneity responsible for the non-Bardeen-Cooper-Schrieffer relation between the superconducting gap and the pairing potential is crucial both for understanding the fundamental issues of superconductivity in highly disordered superconductors, and for the operation of corresponding nanoelectronic devices. Here we report an experimental study of the electron transport properties of narrow NbN nanowires with effective cross sections of the order of the debated inhomogeneity scales. The temperature dependence of the critical current follows the textbook Ginzburg-Landau prediction for the quasi-one-dimensional superconducting channel I c approximately (1-T/T c)(3/2). We find that conventional models based on the the phase slip mechanism provide reasonable fits for the shape of R(T) transitions. Better agreement with R(T) data can be achieved assuming the existence of short 'weak links' with slightly reduced local critical temperature T c. Hence, one may conclude that an 'exotic' intrinsic electronic inhomogeneity either does not exist in our structures, or, if it does exist, it does not affect their resistive state properties, or does not provide any specific impact distinguishable from conventional weak links. |
| Address |
National Research University Higher School of Economics, Moscow Institute of Electronics and Mathematics,109028, Moscow, Russia. P L Kapitza Institute for Physical Problems RAS, Moscow, 119334, Russia |
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English |
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0957-4484 |
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| Notes |
PMID:27782000 |
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no |
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Serial |
1332 |
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| Author |
Peltonen, J. T.; Peng, Z. H.; Korneeva, Yu. P.; Voronov, B. M.; Korneev, A. A.; Semenov, A. V.; Gol'tsman, G. N.; Tsai, J. S; Astafiev, Oleg |
| Title |
Coherent dynamics and decoherence in a superconducting weak link |
Type |
Journal Article |
| Year |
2016 |
Publication |
Physic. Rev. B, |
Abbreviated Journal |
Physic. Rev. B, |
| Volume |
94 |
Issue |
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Pages |
180508 |
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RPLAB @ akorneev @ |
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1123 |
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Arutyunov, K. Y.; Ramos-Álvarez, A.; Semenov, A. V.; Korneeva, Y. P.; An, P. P.; Korneev, A. A.; Murphy, A.; Bezryadin, A.; Gol’tsman, G. N. |
| Title |
Quasi-1-dimensional superconductivity in highly disordered NbN nanowires |
Type |
Miscellaneous |
| Year |
2016 |
Publication |
arXiv |
Abbreviated Journal |
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Issue |
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Pages |
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| Keywords |
narrow NbN nanowires, BCS |
| Abstract |
The topic of superconductivity in strongly disordered materials has attracted a significant attention. In particular vivid debates are related to the subject of intrinsic spatial inhomogeneity responsible for non-BCS relation between the superconducting gap and the pairing potential. Here we report experimental study of electron transport properties of narrow NbN nanowires with effective cross sections of the order of the debated inhomogeneity scales. We find that conventional models based on phase slip concept provide reasonable fits for the shape of the R(T) transition curve. Temperature dependence of the critical current follows the text-book Ginzburg-Landau prediction for quasi-one-dimensional superconducting channel Ic~(1-T/Tc)^3/2. Hence, one may conclude that the intrinsic electronic inhomogeneity either does not exist in our structures, or, if exist, does not affect their resistive state properties. |
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Duplicated as 1332 |
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1338 |
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