| Records |
| Author |
Cherednichenko, S.; Kroug, M.; Khosropanah, P.; Adam, A.; Merkel, H.; Kolberg, E.; Loudkov, D.; Voronov, B.; Gol'tsman, G.; Richter, H.; Hübers, H. W. |
| Title |
A broadband terahertz heterodyne receiver with an NbN HEB mixer |
Type |
Conference Article |
| Year |
2002 |
Publication |
Proc. 13th Int. Symp. Space Terahertz Technol. |
Abbreviated Journal |
Proc. 13th Int. Symp. Space Terahertz Technol. |
| Volume |
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Issue |
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Pages |
85-95 |
| Keywords |
NbN HEB mixers |
| Abstract |
We present a broadband and low noise heterodyne receiver for 1.4-1.7 THz designed for the Hershel Space Observatory. A phonon- cooled NbN HEB mixer was integrated with a normal metal double- slot antenna and an elliptical silicon lens. DSB receiver noise temperature Tr was measured from 1 GHz through 8GHz intermediate frequency band with 50 MHz instantaneous bandwidth. At 4.2 K bath temperature and at 1.6 THz LO frequency Tr is 800 K with the receiver noise bandwidth of 5 GHz. While at 2 K bath temperature Tr was as low as 700 K. At 0.6 THz and 1.1 THz a spiral antenna integrated NbN HEB mixer showed the receiver noise temperature 500 K and 800 K, though no antireflection coating was used in this case. Tr of 1100 K was achieved at 2.5 THz while the receiver noise bandwidth was 4 GHz. |
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Cambridge, MA, USA |
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Harward University |
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332 |
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| Author |
Stéphane Claude |
| Title |
Sideband-separating SIS mixer for ALMA band 7, 275–370 GHz |
Type |
Conference Article |
| Year |
2003 |
Publication |
Proc. 14th Int. Symp. Space Terahertz Technol. |
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41 |
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Tucson, USA |
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no |
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RPLAB @ s @ nt_SIS_60at0p34THz |
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333 |
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| Author |
Grimes, P.; Kittara, P.; Yassin, G.; Withington, S.; Jacobs, K. |
| Title |
Investigation of the performance of a 700 GHz nline mixer |
Type |
Conference Article |
| Year |
2003 |
Publication |
Proc. 14th Int. Symp. Space Terahertz Technol. |
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Pages |
247 |
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Tucson, USA |
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no |
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RPLAB @ s @ nt_SIS_250at0p69THz |
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336 |
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Hajenius, M.; Baselmans, J. J. A.; Gao, J. R.; Klapwijk, T. M.; de Korte, P. A. J.; Voronov, B.; Gol’tsman, G. |
| Title |
Improved NbN phonon cooled hot electron bolometer mixers |
Type |
Conference Article |
| Year |
2003 |
Publication |
Proc. 14th Int. Symp. Space Terahertz Technol. |
Abbreviated Journal |
Proc. 14th Int. Symp. Space Terahertz Technol. |
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Issue |
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Pages |
413-423 |
| Keywords |
NbN HEB mixers |
| Abstract |
NbN phonon-cooled hot electron bolometer mixers (HEBs) have been realized with negligible contact resistance to Au pads. By adding either a 5 nm Nb or a 10 nm NbTiN layer between the Au and NbN, to preserve superconductivity in the NbN under the Au contact pad, superior noise temperatures have been obtained. Using DC I,V curves and resistive transitions in combination with process parameters we analyze the nature of these improved devices and determine interface transparencies. |
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Tucson, USA |
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337 |
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Albert Betz; Rita Boreiko; Yongdong Zhou; Jun Jhao; Yusuf Selamet; Yong Chang; Renganathan Ashokan; Charlie Bukcer; Sivalingam Sivanathan |
| Title |
HgCdTe photoconductive mixers for 3-15 terahertz |
Type |
Conference Article |
| Year |
2003 |
Publication |
Proc. 14th Int. Symp. Space Terahertz Technol. |
Abbreviated Journal |
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Issue |
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Pages |
102-111 |
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Place of Publication |
Tucson, USA |
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no |
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RPLAB @ s @ HgCdTe_at3to15THz_fabr |
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338 |
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