Records |
Author |
Рябчун, С. А. |
Title |
Широкополосные высокостабильные терагерцовые смесители на горячих электронах из тонких сверхпроводниковых пленок NbN |
Type |
Manuscript |
Year |
2009 |
Publication |
М. МПГУ |
Abbreviated Journal |
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Volume |
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Issue |
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Pages |
98 |
Keywords |
HEB, mixer, terahertz, THz, stability, Allan variance, conversion bandwidth, in-situ technique, Au contacts |
Abstract |
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Address |
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Corporate Author |
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Thesis |
Ph.D. thesis |
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Notes |
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Approved |
no |
Call Number |
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Serial |
598 |
Permanent link to this record |
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Author |
Гольцман, Г.Н.; Лудков, Д.Н. |
Title |
Сверхпроводниковые смесители на горячих электронах терагерцового диапазона и их применение в радиоастрономии |
Type |
Journal Article |
Year |
2003 |
Publication |
Изв. высших учебных заведений. Радиофизика |
Abbreviated Journal |
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Volume |
46 |
Issue |
8/9 |
Pages |
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Keywords |
HEB, mixers |
Abstract |
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Address |
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Corporate Author |
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Thesis |
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Place of Publication |
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Editor |
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Language |
russian |
Summary Language |
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Original Title |
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Notes |
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Approved |
no |
Call Number |
RPLAB @ s @ |
Serial |
473 |
Permanent link to this record |
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Author |
Cherednichenko, Sergey; Drakinskiy, Vladimir; Berg, Therese; Kollberg, Erik L.; Angelov, Iltcho |
Title |
The direct detection effect in the hot-electron bolometer mixer sensitivity calibration |
Type |
Journal Article |
Year |
2007 |
Publication |
IEEE Trans. Microw. Theory Techn. |
Abbreviated Journal |
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Volume |
55 |
Issue |
3 |
Pages |
504-510 |
Keywords |
HEB, mixer, direct detection effect |
Abstract |
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Place of Publication |
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Original Title |
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Series Editor |
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Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0018-9480 |
ISBN |
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no |
Call Number |
RPLAB @ lobanovyury @ |
Serial |
555 |
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Author |
Gao, J. R.; Hajenius, M.; Yang, Z. Q.; Baselmans, J. J. A.; Khosropanah, P.; Barends, R.; Klapwijk, T. M. |
Title |
Terahertz superconducting hot electron bolometer heterodyne receivers |
Type |
Journal Article |
Year |
2007 |
Publication |
IEEE Trans. Appl. Supercond. |
Abbreviated Journal |
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Volume |
17 |
Issue |
2 |
Pages |
252-258 |
Keywords |
HEB, mixer, direct detection effect |
Abstract |
We highlight the progress on NbN hot electron bolometer (HEB) mixers achieved through fruitful collaboration between SRON Netherlands Institute for Space Research and Delft University of Technology, the Netherlands. This includes the best receiver noise temperatures of 700 K at 1.63 THz using a twin-slot antenna mixer and 1050 K at 2.84 THz using a spiral antenna coupled HEB mixer. The mixers are based on thin NbN films on Si and fabricated with a new contact-process and-structure. By reducing their areas HEB mixers have shown an LO power requirement as low as 30 nW. Those small HEB mixers have demonstrated equivalent sensitivity as those with large areas provided the direct detection effect due to broadband radiation is removed. To manifest that a HEB based heterodyne receiver can in practice be used at arbitrary frequencies above 2 THz, we demonstrate a 2.8 THz receiver using a THz quantum cascade laser (QCL) as local oscillator. |
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Edition |
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ISSN |
1051-8223 |
ISBN |
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Notes |
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Approved |
no |
Call Number |
RPLAB @ asmirn @ |
Serial |
557 |
Permanent link to this record |
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Author |
Ryabchun, Sergey; Tong, Cheuk-Yu Edward; Blundell, Raymond; Gol'tsman, Gregory |
Title |
Stabilization scheme for hot-electron bolometer receivers using microwave radiation |
Type |
Journal Article |
Year |
2009 |
Publication |
IEEE Trans. Appl. Supercond. |
Abbreviated Journal |
IEEE Trans. Appl. Supercond. |
Volume |
19 |
Issue |
1 |
Pages |
14-19 |
Keywords |
HEB, mixer, Allan variance, stabilization, radiometer equation |
Abstract |
We present the results of a stabilization scheme for terahertz receivers based on NbN hot-electron bolometer (HEB) mixers that uses microwave radiation with a frequency much lower than the gap frequency of NbN to compensate for mixer current fluctuations. A feedback control loop, which actively controls the power level of the injected microwave radiation, has successfully been implemented to stabilize the operating point of the HEB mixer. This allows us to increase the receiver Allan time to 10 s and also improve the temperature resolution of the receiver by about 30% in the total power mode of operation. |
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Series Editor |
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Edition |
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ISSN |
1051-8223 |
ISBN |
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Notes |
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Approved |
no |
Call Number |
RPLAB @ lobanovyury @ |
Serial |
559 |
Permanent link to this record |