Records |
Author |
Mygind, J.; Samuelsen, M. R.; Koshelets, V. P.; Sobolev, A. S. |
Title |
Simple theory for the spectral. linewidth of the mm-wave Josephson flux flow oscillator |
Type |
Abstract |
Year |
2005 |
Publication |
Pi-shift Workshop “Physics of superconducting phase-shift devices” |
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Volume |
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Issue |
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Pages |
22-22 |
Keywords |
SIR |
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Place of Publication |
Ischia, Italy |
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no |
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Serial |
520 |
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Author |
Koshelets, V. P.; Dmitriev, P. N.; Ermakov, A. B.; Filippenko, L. V.; Sobolev, A. S.; Torgashin, M. Yu.; Borisov, V. B. |
Title |
Superconducting flux-flow oscillators for THz integrated receiver |
Type |
Abstract |
Year |
2005 |
Publication |
Presented at the second Franco-Russian Seminar on Nanotechnologies |
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SIR |
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Place of Publication |
Lille, France |
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no |
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Serial |
521 |
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Author |
Vaks, V. L.; Kurin, V. V.; Pankratov, A. L.; Koshelets, V. P. |
Title |
Investigation of spectral properties of phase-focked flux flow oscillator |
Type |
Abstract |
Year |
2005 |
Publication |
ISEC |
Abbreviated Journal |
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Volume |
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Issue |
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Pages |
PD-04 |
Keywords |
SIR, FFO |
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Place of Publication |
Netherlands |
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no |
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Serial |
522 |
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Author |
Hoogeveen, R. W. M.; Yagoubov, P. A.; de Lange, A.; Selig, A. M.; Koshelets, V. P.; Ellison B. N.; Birk, M. |
Title |
Superconducting integrated receiver development for TELIS |
Type |
Conference Article |
Year |
2005 |
Publication |
Proc. 12th International Symposium on Remote Sensing |
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Address |
SIR |
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Place of Publication |
Bruges, Belgium |
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no |
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523 |
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Author |
Koshelets, V. P.; Ermakov, A. B.; Filippenko, L. V.; Khudchenko, A. V.; Kiselev, O. S.; Sobolev, A. S.; Torgashin, M. Y.; Yagoubov, P. A.; Hoogeveen, R. W. M.; Wild, W. |
Title |
Superconducting integrated submillimeter receiver for TELIS |
Type |
Journal Article |
Year |
2007 |
Publication |
IEEE Trans. Appl. Supercond. |
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Volume |
17 |
Issue |
2 |
Pages |
336-342 |
Keywords |
SIR |
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Edition |
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ISSN |
1051-8223 |
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no |
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Serial |
524 |
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Author |
Koshelets, V. P.; Khudchenko, A. V. |
Title |
Analysis of spectral characteristics of a superconducting integrated receiver |
Type |
Journal Article |
Year |
2006 |
Publication |
J. Communications Technol. Electron. |
Abbreviated Journal |
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Volume |
51 |
Issue |
5 |
Pages |
596-603 |
Keywords |
SIR |
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Edition |
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ISSN |
1064-2269 |
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no |
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Serial |
526 |
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Author |
Koshelets, V. P.; Borisov, V. B.; Dmitriev, P. N.; Ermakov, A. B.; Filippenko, L. V.; Khudchenko, A. V.; Kiselev, O. S.; Lapitskaya, I. L.; Sobolev, A. S.; Torgashin, M. Yu.; Yagoubov, P. A.; Hoogeveen, R. W. M. |
Title |
Integrated submillimeter receiver for TELIS |
Type |
Journal Article |
Year |
2006 |
Publication |
Joint International Workshop “Nanosensors and Arrays of Quantum Dots and Josephson Junctions for space applications”, 10th International Workshop “From Andreev Reflection to the Earliest Universe” |
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Pages |
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Keywords |
SIR |
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Place of Publication |
Bjorkliden, Kiruna, Sweden |
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no |
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Serial |
527 |
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Author |
Ozhegov, R. V.; Okunev, O. V.; Gol’tsman, G. N.; Filippenko, L. V.; Koshelets, V. P. |
Title |
Noise equivalent temperature difference of a superconducting integrated terahertz receiver |
Type |
Journal Article |
Year |
2009 |
Publication |
J. Commun. Technol. Electron. |
Abbreviated Journal |
J. Commun. Technol. Electron. |
Volume |
54 |
Issue |
6 |
Pages |
716-720 |
Keywords |
SIS mixer SIR NETD, FFO, harmonic mixer |
Abstract |
The dependence of the noise equivalent temperature difference (NETD) of a superconducting integrated receiver (SIR) on the receiver noise temperature and the inputsignal level has been investigated. An unprecedented NETD of 13±2 mK has been measured at a SIR noise temperature of 200 K, intermediate-frequency bandwidth of 4 GHz, and time constant of 1 s. With a decrease in the input signal, an improvement in the NETD is observed. This effect is explained by a reduction in the influence of the instabilities of the receiver power supply and the amplification circuit that occur when the input signal is decreased. |
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1064-2269 |
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no |
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Serial |
1400 |
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Author |
Ozhegov, R. V.; Gorshkov, K. N.; Gol'tsman, G. N.; Kinev, N. V.; Koshelets, V. P. |
Title |
The stability of a terahertz receiver based on a superconducting integrated receiver |
Type |
Journal Article |
Year |
2011 |
Publication |
Supercond. Sci. Technol. |
Abbreviated Journal |
Supercond. Sci. Technol. |
Volume |
24 |
Issue |
3 |
Pages |
035003 |
Keywords |
SIS mixer, SIR, stability |
Abstract |
We present the results of stability testing of a terahertz radiometer based on a superconducting receiver with a SIS tunnel junction as the mixer and a flux-flow oscillator as the local oscillator. In the continuum mode, the receiver with a noise temperature of 95 K at 510 GHz measured over the intermediate frequency (IF) passband of 4-8 GHz offered a noise equivalent temperature difference of 10 ± 1 mK at an integration time of 1 s. We offer a method to significantly increase the integration time without the use of complex measurement equipment. The receiver observed a strong signal over a final detection bandwidth of 4 GHz and offered an Allan time of 5 s. |
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RPLAB @ gujma @ |
Serial |
705 |
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Author |
Feofanov, A. K.; Oboznov, V. A.; Bol'Ginov, V. V.; Lisenfeld, J.; Poletto, S.; Ryazanov, V. V.; Rossolenko, A. N.; Khabipov, M.; Balashov, D.; Zorin, A. B.; Dmitriev, P. N.; Koshelets, V. P.; Ustinov, A. V. |
Title |
Implementation of superconductor/ferromagnet/ superconductor |
Type |
Journal Article |
Year |
2010 |
Publication |
Nature Physics |
Abbreviated Journal |
Nat. Phys. |
Volume |
6 |
Issue |
8 |
Pages |
593-597 |
Keywords |
fromIPMRAS |
Abstract |
High operation speed and low energy consumption may allow the superconducting digital single-flux-quantum circuits to outperform traditional complementary metal-oxide-semiconductor logic. The remaining major obstacle towards high element densities on-chip is a relatively large cell size necessary to hold a magnetic flux quantum Φ0. Inserting a π-type Josephson junction in the cell is equivalent to applying flux Φ0/2 and thus makes it possible to solve this problem. Moreover, using π-junctions in superconducting qubits may help to protect them from noise. Here we demonstrate the operation of three superconducting circuits-two of them are classical and one quantum-that all utilize such π-phase shifters realized using superconductor/ferromagnet/superconductor sandwich technology. The classical circuits are based on single-flux-quantum cells, which are shown to be scalable and compatible with conventional niobium-based superconducting electronics. The quantum circuit is a π-biased phase qubit, for which we observe coherent Rabi oscillations. We find no degradation of the measured coherence time compared to that of a reference qubit without a π-junction. |
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RPLAB @ gujma @ |
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805 |
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