| 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. |
Abbreviated Journal |
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| Volume |
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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 |
Shi, S. C.; Chin, C. C.; Wang, M. J.; Shan, W. L.; Zhang, W.; Noguchi, T. |
| Title |
Development of a 600–720 GHz SIS Mixer for the SMART |
Type |
Conference Article |
| Year |
2001 |
Publication |
Proc. 12th Int. Symp. Space Terahertz Technol. |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
215 |
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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_145K_at_p618THz |
Serial |
317 |
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| Author |
Cherednichenko, S.; Kroug, M.; Merkel, H.; Kollberg, E.; Loudkov, D.; Smirnov, K.; Voronov, B.; Gol'tsman, G.; Gershenzon, E. |
| Title |
Local oscillator power requirement and saturation effects in NbN HEB mixers |
Type |
Conference Article |
| Year |
2001 |
Publication |
Proc. 12th Int. Symp. Space Terahertz Technol. |
Abbreviated Journal |
Proc. 12th Int. Symp. Space Terahertz Technol. |
| Volume |
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Issue |
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Pages |
273-285 |
| Keywords |
NbN HEB mixers, LO power, local oscillator power, saturation effect, dynamic range |
| Abstract |
The local oscillator power required for NbN hot-electron bolometric mixers (P LO ) was investigated with respect to mixer size, critical temperature and ambient temperature. P LO can be decreased by a factor of 10 as the mixer size decreases from 4×0.4 µm 2 to 0.6×0.13 µm 2 . For the smallest volume mixer the optimal local oscillator power was found to be 15 nW. We found that for such mixer no signal compression was observed up to an input signal of 2 nW which corresponds to an equivalent input load of 20,000 K. For a constant mixer volume, reduction of T c can decrease optimal local oscillator power at least by a factor of 2 without a deterioration of the receiver noise temperature. Bath temperature was found to have minor effect on the receiver characteristics. |
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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 |
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Serial |
318 |
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| Author |
Betz, A. L.; Boreiko, R. T.; Sivananthan, S.; Ashokan, R. |
| Title |
HgCdTe photoconductive mixers for 2-8 THz |
Type |
Conference Article |
| Year |
2001 |
Publication |
Proc. 12th Int. Symp. Space Terahertz Technol. |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
92-101 |
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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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Approved |
no |
| Call Number |
RPLAB @ s @ HgCdTe_2p5hf_to_k_at_10um |
Serial |
321 |
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| Author |
Yagoubov, P.; Hübers, H.-W.; Gol’tsman, G.; Semenov, A.; Gao, J.; Hoogeveen, R.; de Graauw, T.; Birk, M.; Selig, A.; de Korte, P. |
| Title |
Hot-electron bolometer mixers – technology for far-infrared heterodyne instruments in future atmospheric chemistry missions |
Type |
Conference Article |
| Year |
2001 |
Publication |
Proc. 3rd Int. Symp. Submillimeter Wave Earth Observation From Space |
Abbreviated Journal |
Proc. 3rd Int. Symp. Submillimeter Wave Earth Observation From Space |
| Volume |
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Issue |
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Pages |
57-69 |
| Keywords |
HEB mixers |
| Abstract |
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| Address |
Delmenhorst |
| Corporate Author |
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Thesis |
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| Publisher |
Logos-Verlag |
Place of Publication |
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Editor |
Buehler, S.; Berlin |
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ISBN |
3-89722-700-2 |
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Conference |
International Symposium on Submillimeter Wave Earth Observation from Space, ISSMWEOS01 |
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Approved |
no |
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Serial |
1549 |
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| Author |
Chen, P. S. |
| Title |
Infrared properties of barium stars |
Type |
Journal Article |
| Year |
2001 |
Publication |
Astron. Astrophys. |
Abbreviated Journal |
A&A |
| Volume |
372 |
Issue |
1 |
Pages |
245-248 |
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Edition |
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| ISSN |
0004-6361 |
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no |
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RPLAB @ s @ |
Serial |
415 |
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| Author |
Hsiao, F.Z.; Lin, M.C.; Wang, C.; Lee, D.S.; Chen, J.R.; Hilbert, B.; Praud, A. |
| Title |
The liquid helium cryogenic system for the superconducting cavity in SRRC |
Type |
Conference Article |
| Year |
2001 |
Publication |
Proc. Particle Accelerator Conference |
Abbreviated Journal |
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| Volume |
2 |
Issue |
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Pages |
1604-1606 |
| Keywords |
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| Abstract |
A 500 MHz superconducting cavity will replace the current copper cavity and begin to operate in the beginning of the year 2003. A liquid helium cryogenic system provides the cavity at 4.5 K a cooling capacity of 255 W without LN2 pre-cooling and a liquefaction rate of 110 liter/hour with LN2 pre-cooling. A safety factor of 1.5 is used to estimate the heat load from the superconducting cavity and the heat loss from the transfer lines. With the LN2 pre-cooling, this cooling system provides a cooling capacity of up to 450 W to cool down the additional superconducting Landau cavity. The capacity of the system can be tuned using a frequency driver installed at the compressor station. The pressure fluctuations of the dewar and of the suction line are kept to the same stability requirement that of the cavity cryostat to minimize the influence in cavity operation. A shutdown period for maintenance of more than 8000 hours for the cryogenic system is expected without interfering with the continuous operation of the superconducting cavity. |
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no |
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RPLAB @ s @ |
Serial |
426 |
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| Author |
Ganzevles, W. F. M.; Gao, J. R.; de Korte, P. A. J.; Klapwijk, T. M. |
| Title |
Direct response of microstrip line coupled Nb THz hot-electron bolometer mixers |
Type |
Journal Article |
| Year |
2001 |
Publication |
Applied Physics Letters |
Abbreviated Journal |
Appl. Phys. Lett. |
| Volume |
79 |
Issue |
15 |
Pages |
2483-2485 |
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Edition |
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| ISSN |
0003-6951 |
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Approved |
no |
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Serial |
311 |
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| Author |
Kroug, M. |
| Title |
Hot electron bolometric mixers for a quasi-optical terahertz receiver |
Type |
Book Whole |
| Year |
2001 |
Publication |
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Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
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Thesis |
Ph.D. thesis |
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Place of Publication |
Chalmers University of Technology, Gothenburg, Sweden |
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no |
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Serial |
310 |
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| Author |
Van Rudd, J.; Johnson, Jon L.; Mittleman, Daniel M. |
| Title |
Cross-polarized angular emission patterns from lens-coupled terahertz antennas |
Type |
Journal Article |
| Year |
2001 |
Publication |
J. Opt. Soc. Am. B |
Abbreviated Journal |
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| Volume |
18 |
Issue |
10 |
Pages |
1524 |
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| ISSN |
0740-3224 |
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no |
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Serial |
475 |
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