| Records |
| Author |
Yang, Z. Q.; Hajenius, M.; Baselmans, J. J. A.; Gao, J. R.; Voronov, B.; Gol’tsman, G. N. |
| Title |
Reduced noise in NbN hot-electron bolometer mixers by annealing |
Type |
Journal Article |
| Year |
2006 |
Publication |
Supercond. Sci. Technol. |
Abbreviated Journal |
Supercond. Sci. Technol. |
| Volume |
19 |
Issue |
4 |
Pages |
L (9 to 12) |
| Keywords |
NbN HEB mixers |
| Abstract |
We find that the sensitivity of heterodyne receivers based on superconducting hot-electron bolometers (HEBs) increases by 25–30% after annealing at 85 °C in vacuum. The devices studied are twin-slot antenna coupled mixers with a small NbN bridge of 1 × 0.15 µm2. We show that annealing changes the device properties as reflected in sharper resistive transitions of the complete device, apparently reducing the device-related noise. The lowest receiver noise temperature of 700 K is measured at a local oscillator frequency of 1.63 THz and a bath temperature of 4.3 K. |
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| ISSN |
0953-2048 |
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no |
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Serial |
1456 |
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| Author |
Корнеев, Александр Александрович |
| Title |
Квантовая эффективность и темновой счет NbN сверхпроводникового инфракрасного однофотонного детектора |
Type |
Manuscript |
| Year |
2006 |
Publication |
М. МПГУ |
Abbreviated Journal |
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Issue |
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Pages |
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Thesis |
Ph.D. thesis |
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| Language |
Russian |
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no |
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Serial |
480 |
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| Author |
Финкель, М. И. |
| Title |
Терагерцовые смесители на эффекте электронного разогрева в ультратонких плёнках NbN и NbTiN |
Type |
Manuscript |
| Year |
2006 |
Publication |
М. МПГУ |
Abbreviated Journal |
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Issue |
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Pages |
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| Keywords |
HEB, detector, mixer, terahertz, THz, infrared, IR, direct detection effect, conversion bandwidth, conversion loss |
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Thesis |
Ph.D. thesis |
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no |
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Serial |
597 |
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