| Records |
| Author |
Torgashin, Mikhail Yu.; Koshelets, Valery P.; Dmitriev, Pavel N.; Ermakov, Andrey B.; Filippenko, Lyudmila V.; Yagoubov, Pavel A. |
| Title |
Superconducting Integrated Receiver Based on Nb-AlN-NbN-Nb Circuits |
Type |
Journal Article |
| Year |
2007 |
Publication |
IEEE Trans. Appl. Supercond. |
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| Volume |
17 |
Issue |
2 |
Pages |
379-382 |
| Keywords |
SIR |
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| ISSN |
1051-8223 |
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Serial |
525 |
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| Author |
Semenov, Alexei D.; Richter, Heiko; Hubers, Heinz-Wilhelm; Gunther, Burghardt.; Smirnov, Andrey; Il'in, Konstantin S.; Siegel, Michael; Karamarkovic, Jugoslav P. |
| Title |
Terahertz performance of integrated lens antennas with a hot-electron bolometer |
Type |
Journal Article |
| Year |
2007 |
Publication |
IEEE Trans. Microw. Theory Techn. |
Abbreviated Journal |
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| Volume |
55 |
Issue |
2 |
Pages |
239-247 |
| Keywords |
HEB, lens antenna |
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| ISSN |
0018-9480 |
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no |
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538 |
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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 |
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0018-9480 |
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RPLAB @ lobanovyury @ |
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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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| ISSN |
1051-8223 |
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no |
| Call Number |
RPLAB @ asmirn @ |
Serial |
557 |
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| Author |
Cherednichenko, S.; Drakinskiy, V.; Baubert, J.; Krieg, J.-M.; Voronov, B.; Gol'tsman, G.; Desmaris, V. |
| Title |
Gain bandwidth of NbN hot-electron bolometer terahertz mixers on 1.5 μm Si3N4 / SiO2 membranes |
Type |
Journal Article |
| Year |
2007 |
Publication |
J. Appl. Phys. |
Abbreviated Journal |
J. Appl. Phys. |
| Volume |
101 |
Issue |
12 |
Pages |
124508 (1 to 6) |
| Keywords |
HEB, mixer, membrane |
| Abstract |
The gain bandwidth of NbN hot-electron bolometer terahertz mixers on electrically thin Si3N4/SiO2 membranes was experimentally investigated and compared with that of HEB mixers on bulk substrates. A gain bandwidth of 3.5 GHz is achieved on bulk silicon, whereas the gain bandwidth is reduced down to 0.6–0.9 GHz for mixers on 1.5 μm Si3N4/SiO2 membranes. We show that application of a MgO buffer layer on the membrane extends the gain bandwidth to 3 GHz. The experimental data were analyzed using the film-substrate acoustic mismatch approach. |
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| ISSN |
0021-8979 |
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no |
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560 |
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