| Records |
| Author |
Tret’yakov, I. V.; Ryabchun, S. A.; Kaurova, N. S.; Larionov, P. A.; Lobastova, A. A.; Voronov, B. M.; Finkel, M. I.; Gol’tsman, G. N. |
| Title |
Optimum absorbed heterodyne power for superconducting NbN hot-electron bolometer mixer |
Type |
Journal Article |
| Year |
2010 |
Publication |
Tech. Phys. Lett. |
Abbreviated Journal |
Tech. Phys. Lett. |
| Volume |
36 |
Issue |
12 |
Pages  |
1103-1105 |
| Keywords |
NbN HEB mixer |
| Abstract |
Absorbed heterodyne power has been measured in a low-noise broadband hot-electron bolometer (HEB) mixer for the terahertz range, operating on the effect of electron heating in the resistive state of an ultrathin superconducting NbN film. It is established that the optimum absorbed heterodyne power for the HEB mixer operating at 2.5 THz is about 100 nW. |
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| ISSN |
1063-7850 |
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1389 |
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| Author |
Semenov, A. D.; Il'in, K.; Siegel, M.; Smirnov, A.; Pavlov, S.; Richter, H.; Hübers, H.-W. |
| Title |
Evidence of non-bolometric mixing in the bandwidth of a hot-electron bolometer |
Type |
Journal Article |
| Year |
2006 |
Publication |
Superconductor Science and Technology |
Abbreviated Journal |
Supercond. Sci. Technol. |
| Volume |
19 |
Issue |
10 |
Pages |
1051-1056 |
| Keywords |
HEB |
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| ISSN |
0953-2048 |
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no |
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536 |
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| Author |
Phillips, T. G.; Jefferts, K. B. |
| Title |
A low temperature bolometer heterodyne receiver for Millimeter wave astronomy |
Type |
Journal Article |
| Year |
1973 |
Publication |
Rev. Sci. Instrum. |
Abbreviated Journal |
Rev. Sci. Instrum. |
| Volume |
44 |
Issue |
8 |
Pages |
1009-1014 |
| Keywords |
InSb HEB mixer |
| Abstract |
Liquid helium cooled InSb hot electronbolometers are used in a balanced mixer configuration as detectors for an imagelessmicrowave receiver. The system is designed for mounting at the prime focus of the National Radio Astronomy Observatory (NRAO) 11 m antenna at Kitt Peak, Arizona, and is suitable for the study of rotational line spectra of interstellar gas molecules. Currently the operating frequency is in the 90–140 GHz band where the double sideband system noise temperature is 250 K. |
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Recommended by Klapwijk |
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no |
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Serial |
927 |
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| Author |
Gerecht, E.; Musante, C.F.; Zhuang, Y.; Ji, M.; Yngvesson, K.S.; Goyette, T.; Waldman, J. |
| Title |
NbN hot electron bolometric mixer with intrinsic receiver noise temperature of less than five times the quantum noise limit |
Type |
Conference Article |
| Year |
2000 |
Publication |
Proc. IMS |
Abbreviated Journal |
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| Volume |
2 |
Issue |
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Pages |
1007-1010 |
| Keywords |
HEB mixer |
| Abstract |
In recent years, improvements in device development and quasi-optical coupling techniques utilizing planar antennas have led to a significant achievement in low noise receivers for the edges of the submillimeter frequency regime. Hot electron bolometric (HEB) receivers made of thin superconducting films such as NbN have produced a viable option for instruments designed to measure the molecular spectra for astronomical applications as well as in remote sensing of the atmosphere in the THz regime. This paper describes an NbN HEB mixer with intrinsic DSB receiver noise temperature of at most five times the quantum noise limit at frequencies as high as 2.24 THz |
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477 |
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| Author |
Ozhegov, R. V.; Gorshkov, K. N.; Okunev, O. V.; Gol’tsman, G. N. |
| Title |
Superconducting hot-electron bolometer mixer as element of thermal imager matrix |
Type |
Journal Article |
| Year |
2010 |
Publication |
Tech. Phys. Lett. |
Abbreviated Journal |
Tech. Phys. Lett. |
| Volume |
36 |
Issue |
11 |
Pages |
1006-1008 |
| Keywords |
HEB mixers |
| Abstract |
The possibility of using a matrix of sensitive elements on a 12-mm-diameter hyperhemispherical lens in a thermal imager operating in the terahertz range has been studied. Dimensions of a lens region acceptable for arrangement of the matrix, in which the receiver noise temperature varies within 16% of the mean value, are determined to be 3.3% of the lens diameter. Deviations of the main lobe of the directivity pattern are evaluated, which amount to ±1.25° relative to the direction toward the optimum position of a mixer. The fluctuation sensitivity of the receiver measured in experiment is 0.5 K at a frequency of 300 GHz. |
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1063-7850 |
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1390 |
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