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Cherednichenko, S.; Kollberg, E.; Angelov, I.; Drakinskiy, V.; Berg, T.; Merkel, H. |
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Title |
Effect of the direct detection effect on the HEB receiver sensitivity calibration |
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2005 |
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Proc. 16th Int. Symp. Space Terahertz Technol. |
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235-239 |
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HEB, mixer, direct detection effect |
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Abstract |
We analyze the scale of the HEB receiver sensitivity calibration error caused by the so called “direct detection effect”. The effect comes from changing of the HEB parameters when whey face the calibration loads of different temperatures. We found that for HIFI Band 6 mixers (Herschel Space Observatory) the noise temperature error is of the order of 8% for 300K/77K loads (lab receiver) and 2.5% for 100K/10K loads (in HIFI). Using different approach we also predict that with an isolator between the mixer and the low noise amplifiers the error can be much smaller. |
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Göteborg, Sweden |
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Karpov, A.; Miller, D.; Stern, J. A.; Bumble, B.; LeDuc, H. G.; Zmuidzinas, J. |
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Title |
Low noise NbTiN 1.25 THz SIS mixer for Herschel Space Observatory |
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2005 |
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Proc. 16th Int. Symp. Space Terahertz Technol. |
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450 |
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Göteborg, Sweden |
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RPLAB @ s @ nt_SIS_760at1p25THz |
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359 |
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Marrone, Daniel P.; Raymond Blundell; Edward Tong; Paine, Scott. N.; Denis Loudkov; Jonathan Kawamura; Daniel Luhr; Claudio Barrientos |
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Title |
Observations in the 1.3 and 1.5 THz atmospheric windows with the Receiver Lab Telescope |
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2005 |
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Proc. 16th Int. Symp. Space Terahertz Technol. |
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64-67 |
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RPLAB @ s @ RLT_observ |
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361 |
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Meledin, D.; Pantaleev, M.; Pavolotsky, A.; Risacher, C.; Belitsky, V.; Drakinskiy, V.; Cherednichenko, S. |
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Title |
Balanced waveguide HEB mixer for APEX 1.3 THz receiver |
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2005 |
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Proc. 16th Int. Symp. Space Terahertz Technol. |
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RPLAB @ s @ wg_balanced |
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362 |
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Hübers, H. W.; Pavlov, S. G.; Semenov, A. D.; Tredicucci, A.; Köhler, R.; Mahler, L.; Beere, H. E.; Linfield, E. H.; Ritchie, D. A. |
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Title |
Investigation of a 2.5 THz quantum cascade laser as local oscillator |
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2005 |
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Proc. 16th Int. Symp. Space Terahertz Technol. |
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18 |
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RPLAB @ s @ qc_lasers_huebers |
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366 |
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