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Cherednichenko, S.; Rönnung, F.; Gol'tsman, G.; Kollberg, E.; Winkler, D. |
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Title |
YBa2Cu3O7−δ hot-electron bolometer mixer |
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Journal Article |
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Year |
2000 |
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Phys. C: Supercond. |
Abbreviated Journal |
Phys. C: Supercond. |
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341-348 |
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2653-2654 |
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Keywords |
YBCO HTS HEB mixers |
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Abstract |
We present an investigation of hot-electron bolometric mixer based on YBa2Cu3O7−δ (YBCO) superconducting thin film. Mixer conversion loss, absorbed local oscillator power and intermediate frequency bandwidth was measured at the local oscillator frequency 600 GHz. The fabrication technique for nanoscale YBCO hot-electron bolometer (HEB) mixer integrated into planar antenna structure is described. |
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0921-4534 |
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1552 |
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Karasik, B.S.; Milostnaya, I.I.; Zorin, M.A.; Elantev, A.I.; Gol'tsman, G.N.; Gershenzon, E.M. |
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Title |
Subnanosecond S-N and N-S switching of YBCO film induced by current pulse |
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Journal Article |
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Year |
1994 |
Publication |
Phys. C: Supercond. |
Abbreviated Journal |
Phys. C: Supercond. |
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235-240 |
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Pages |
1981-1982 |
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Keywords |
YBCO HTS switches |
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A transition of YBCO bridge 60 nm thick from superconducting to normal state induced by an abrupt current step has been studied. A subnanosecond stage has been observed during both S-N and N-S transition. The data obtained can be explained by hot-electron phenomena. On the basis of experimental results a prediction of picosecond switch performance has been made. |
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0921-4534 |
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1633 |
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Gol'tsman, G. N.; Kouminov, P.; Goghidze, I.; Gershenzon, E. M. |
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Title |
Nonequilibrium kinetic inductive response of YBaCuO thin films to low-power laser pulses |
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Journal Article |
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1994 |
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Phys. C: Supercond. |
Abbreviated Journal |
Phys. C: Supercond. |
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235-240 |
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1979-1980 |
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Keywords |
YBCO HTS KID |
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Transient non-equilibrium kinetic inductive voltage response of YBaCuO thin films to 20 ps pulses of YAG:Nd laser radiation with 0.63 μm and 1.5 μm wavelength has been revealed. By increasing the sensitivity of 100 ps resolution time registration system and diminishing light intensity (fluence 0.1-1 μJ2/cm2) and transport current (density j≤105 A/cm2) we observed a perculiar bipolar signal form with nearly equal amplitudes of each sign. The integration of the kinetic inductive response over time gives the result which is qualitatively of the same form as the response in the resistive and normal states: nonequilibrium picosecond scale component followed by bolometric nanosecond. Nonequilibrium response is interpreted as suppression of order parameter by excess of quasiparticles followed by a change in resistance in the resistive state and kinetic inductance in superconductive state. |
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1634 |
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Semenov, A.; Haas, P.; Ilin, K.; Hubers, H.; Siegel, M.; Engel, A.; Smirnov, A. |
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Title |
Energy resolution and sensitivity of a superconducting quantum detector |
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2007 |
Publication |
Phys. C: Supercond. |
Abbreviated Journal |
Phys. C: Supercond. |
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460-462 |
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1491-1492 |
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0921-4534 |
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535 |
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Gershenzon, E. M.; Gol'tsman, G. N.; Gogidze, I. G.; Semenov, A. D.; Sergeev, A. V. |
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Title |
Processes of electron-phonon interaction in thin YBaCuO films |
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1991 |
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Phys. C: Supercond. |
Abbreviated Journal |
Phys. C: Supercond. |
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185-189 |
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1371-1372 |
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Keywords |
YBCO HTS detectors |
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The ultrafast voltage response of YBaCuO films to laser radiation is studied and compared with previously investigated quasiparicles response to radiation of submillimeter wavelength range. Voltage shift under the visible light radiation has two components. Picosecond response realized as suppression superconductivity by nonequilibrium excess quasiparticles, response time is determined by quasiparticles recombination rate. Nanosecond response is probably due to bolometric effect. |
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0921-4534 |
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1676 |
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