| Records |
| Author |
Karpov, A.; Miller, D.; Rice, F.; Zmuidzinas, J.; Stern, J. A.; Bumble, B.; LeDuc, H. G. |
| Title |
Low noise 1.2 THz SIS receiver |
Type |
Conference Article |
Year  |
2001 |
Publication |
Proc. 12th Int. Symp. Space Terahertz Technol. |
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Issue |
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Pages |
21-22 |
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Place of Publication |
San Diego, CA, USA |
Editor |
Jet Propulsion Laboratory, California Inst.it.u.t.e of Technology |
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no |
| Call Number |
RPLAB @ s @ sis_650K_at_1p13THz |
Serial |
316 |
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| Author |
Skalare, A.; McGrath, William R.; Echternach, P. M.; Leduc, H. G.; Siddiqi, I.; Verevkin, A.; Prober, D. E. |
| Title |
Aluminum hot-electron bolometer mixers at submillimeter wavelengths |
Type |
Journal Article |
| Year |
2001 |
Publication |
IEEE Trans. Appl. Supercond. |
Abbreviated Journal |
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| Volume |
11 |
Issue |
1 |
Pages |
641-644 |
| Keywords |
Al HEB mixer, contacts, interface, in situ, in-situ, Aluminium HEB mixer |
| Abstract |
Diffusion-cooled aluminum hot-electron bolometer (HEB) mixers are of interest for low-noise high resolution THz-frequency spectroscopy within astrophysics. Al HEB mixers offer operation with an order of magnitude less local oscillator power, higher intermediate frequency bandwidth and potentially lower noise than competing devices made from other materials. We report on mixer experiments at 618 GHz with devices fabricated from films with sheet resistances in the range from about 55 Ω down to about 9 Ω per square. Intermediate frequency bandwidths of up to 3 GHz were measured (1 μm long device), with absorbed local oscillator power levels of 0.5 to 6 nW and mixer conversion up to -21.5 dB. High input coupling efficiency implies that the electrons in the device are able to thermalize before escaping from the device. It was found that the long coherence length complicates mixer operations due to the proximity of the contact pads. Also, saturation at the IF frequency may be a concern for this type of device, and warrants further studies. |
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1051-8223 |
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no |
| Call Number |
ref919426b |
Serial |
1061 |
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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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Issue |
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Pages |
215-229 |
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Place of Publication |
Charlottesville, Virginia |
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no |
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RPLAB @ s @ qoheb_Tn_1250_at_1p1 |
Serial |
293 |
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| Author |
Chattopadhyay, G.; Rice, F.; Miller, D.; LeDuc, H. G.; Zmuidzinas, J. |
| Title |
A 530-GHz balanced mixer |
Type |
Journal Article |
| Year |
1999 |
Publication |
IEEE Microw. and Guided Wave Lett. |
Abbreviated Journal |
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| Volume |
9 |
Issue |
11 |
Pages |
467-469 |
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RPLAB @ s @ sis_Chattopadhyay_1999 |
Serial |
301 |
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| Author |
Burke, P. J.; Schoelkopf, R. J.; Prober, D. E.; Skalare, A.; Karasik, B. S.; Gaidis, M. C.; McGrath, W. R.; Bumble, B.; LeDuc, H. G. |
| Title |
Mixing and noise in diffusion and phonon cooled superconducting hot-electron bolometers |
Type |
Journal Article |
| Year |
1999 |
Publication |
J. Appl. Phys. |
Abbreviated Journal |
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| Volume |
85 |
Issue |
3 |
Pages |
1644-1653 |
| Keywords |
HEB, mixer |
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0021-8979 |
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no |
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556 |
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