| Records |
| Author |
Gershenzon, E. M.; Gol'tsman, G. N.; Elantiev, A. I.; Karasik, B. S.; Potoskuev, S. E. |
| Title |
Intense electromagnetic radiation heating of electrons of a superconductor in the resistive state |
Type |
Journal Article |
| Year |
1988 |
Publication |
Sov. J. Low Temp. Phys. |
Abbreviated Journal |
Sov. J. Low Temp. Phys. |
| Volume |
14 |
Issue |
7 |
Pages |
414-420 |
| Keywords |
HEB |
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Duplicated as 1697 |
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236 |
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Gershenzon, E. M.; Gol'tsman, G. N.; Gogidze, I. G.; Gusev, Yu. P.; Elantiev, A. I.; Karasik, B. S.; Semenov, A. D. |
| Title |
Millimeter and submillimeter wave range mixer based on electronic heating of superconducting films in the resistive state |
Type |
Journal Article |
| Year |
1990 |
Publication |
Sov. Supercond. |
Abbreviated Journal |
Sov. Supercond. |
| Volume |
3 |
Issue |
10 |
Pages |
1582-1597 |
| Keywords |
HEB mixers |
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240 |
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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. |
| Volume |
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Issue |
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Pages |
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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Wyss, R. A.; Karasik, B. S.; McGrath, W. R.; Bamble, B.; LeDuc, H. |
| Title |
Noise and bandwidth measurements of diffusion–cooled Nb hot–electron bolometer mixers at frequencies above the superconductive energy gap |
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Conference Article |
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1999 |
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Proc. 10th Int. Symp. Space Terahertz Technol. |
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215-229 |
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Charlottesville, Virginia |
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RPLAB @ s @ qoheb_Tn_1250_at_1p1 |
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293 |
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| Author |
Gershenson, M. E.; Gong, D.; Sato, T.; Karasik, B. S.; Sergeev, A. V. |
| Title |
Millisecond electron-phonon relaxation in ultrathin disordered metal films at millikelvin temperatures |
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Journal Article |
| Year |
2001 |
Publication |
Appl. Phys. Lett. |
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79 |
Issue |
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Pages |
2049-2051 |
| Keywords |
HEB detector, FIR, far infrared |
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RPLAB @ s @ heb_eph_interaction_Gershenzon |
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315 |
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