| Records |
| Author |
Hesler, Jeffrey L.; Hui, Kai; Crowe, Thomas W. |
| Title |
A fixed–tuned 400 GHz subharmonic mixer using planar Schottky diods |
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Conference Article |
| Year |
1999 |
Publication |
Proc. 10th Int. Symp. Space Terahertz Technol. |
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Pages |
95 |
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Charlottesville, Virginia, USA |
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no |
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RPLAB @ s @ schottky_Tn_1120_at_0p42THz |
Serial |
291 |
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Merkel, H.; Khosropanah, P.; Yagubov, P.; Kollberg, E. |
| Title |
A hot spot mixer model for superconducting phonone–cooled HEB far above the quasipartical band gap |
Type |
Conference Article |
| Year |
1999 |
Publication |
Proc. 10th Int. Symp. Space Terahertz Technol. |
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Pages |
592-606 |
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Place of Publication |
Charlottesville, Virginia |
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no |
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292 |
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| Author |
Wyss, R. A.; Karasik, B. S.; McGrath, W. R.; Bamble, B.; LeDuc, H. |
| Title |
Noise and bandwidth measurements of diffusion–cooled Nb hot–electron bolometer mixers at frequencies above the superconductive energy gap |
Type |
Conference Article |
| Year |
1999 |
Publication |
Proc. 10th Int. Symp. Space Terahertz Technol. |
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Pages |
215-229 |
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Place of Publication |
Charlottesville, Virginia |
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RPLAB @ s @ qoheb_Tn_1250_at_1p1 |
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293 |
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Pan, S. K.; A. R. Kerr, M. W. Pospieszalski; Lauria, E. F.; Crady, W. K.; Horner, N.; Srikanth, Jr. S.; Bryerton, E.; Saini, K.; Claude, S. M. X.; Chin, C. C.; Dindo, P.; Rodrigues, G.; Derdall, D.; Zhang, J. Z.; Lichtenberger, A. W. |
| Title |
A fixed-tuned integrated SIS mixer with ultra-wideband IF and quantum-limited sensitivity for ALMA band 3 (84-116 GHz) receivers |
Type |
Conference Article |
| Year |
2004 |
Publication |
Proc. 15th Int. Symp. Space Terahertz Technol. |
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Pages |
55-61 |
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Place of Publication |
Northampton, MA |
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RPLAB @ s @ SIS_bandw_8GHz |
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358 |
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Khosropanah, P.; Gao, J. R.; Laauwen, W. M.; Hajenius, M; Klapwijk, T. M. |
| Title |
Low noise NbN hot electron bolometer mixer at 4.3 THz |
Type |
Journal Article |
| Year |
2007 |
Publication |
Appl. Phys. Lett. |
Abbreviated Journal |
Appl. Phys. Lett. |
| Volume |
91 |
Issue |
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Pages |
221111 (1 to 3) |
| Keywords |
NbN HEB mixers, NbN, contacts cleaning |
| Abstract |
We have studied the sensitivity of a superconducting NbN hot electron bolometer mixer integrated with a spiral antenna at 4.3 THz. Using hot/cold blackbody loads and a beam splitter all in vacuum, we measured a double sideband receiver noise temperature of 1300 K at the optimum local oscillator (LO) power of 330 nW, which is about 12 times the quantum noise (hnu/2kB). Our result indicates that there is no sign of degradation of the mixing process at the superterahertz frequencies. Moreover, a measurement method is introduced which allows us for an accurate determination of the sensitivity despite LO power fluctuations. |
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no |
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584 |
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