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Archer, J. W. |
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Title |
Multiple mixer, cryogenic receiver for 200-350 GHz |
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Journal Article |
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1983 |
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Rev. Sci. Instrum. |
Abbreviated Journal |
Rev. Sci. Instrum. |
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54 |
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10 |
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1371-1376 |
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Keywords |
Schottky, mixer, noise temperature |
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This paper describes a new 200–350-GHz dual polarization heterodyne radiometer receiver for radio astronomy applications. The receiver incorporates four pairs of cryogenically cooled Schottky-barrier diode single-ended mixers, each pair covering a 30–40-GHz subband of the full operating band. Each mixer, with its IF amplifier, is mounted in an individual cryogenic subdewar comprising a separate vcuum chamber and a cold stage, which may be readily thermally connected to or disconnected from the main refrigerator by a novel mechanical heat switch. A dual polarization LO diplexer is mounted on a rotary table above the subdewars. For band selection, the two diplexer rf output ports may be positioned over any of the four pairs of subdewars. The SSB receiver noise temperatues achieved are less than 500 K between 200 and 240 GHz, less than 800 K between 245 and 275 GHz and 1500 K at 345 GHz. |
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589 |
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Bingham, S. J.; Börger, B.; Suter, D.; Thomson, A. J. |
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Title |
The design and sensitivity of microwave frequency optical heterodyne receivers |
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Journal Article |
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1998 |
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Review of Scientific Instruments |
Abbreviated Journal |
Rev. Sci. Instrum. |
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69 |
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9 |
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3403-3409 |
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optical mixing |
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0034-6748 |
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508 |
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Cherednichenko, Sergey; Drakinskiy, Vladimir; Berg, Therese; Khosropanah, Pourya; Kollberg, Erik |
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Hot-electron bolometer terahertz mixers for the Herschel Space Observatory |
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Journal Article |
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2008 |
Publication |
Review of Scientific Instruments |
Abbreviated Journal |
Rev. Sci. Instrum. |
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79 |
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034501 |
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HEB mixer, HEB detector, HEB direct detector, applications |
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We report on low noise terahertz mixers(1.4–1.9THz) developed for the heterodyne spectrometer onboard the Herschel Space Observatory. The mixers employ double slot antenna integrated superconducting hot-electron bolometers (HEBs) made of thin NbN films. The mixer performance was characterized in terms of detection sensitivity across the entire rf band by using a Fourier transform spectrometer (from 0.5to2.5THz, with 30GHz resolution) and also by measuring the mixernoise temperature at a limited number of discrete frequencies. The lowest mixernoise temperature recorded was 750K [double sideband (DSB)] at 1.6THz and 950KDSB at 1.9THz local oscillator (LO) frequencies. Averaged across the intermediate frequency band of 2.4–4.8GHz, the mixernoise temperature was 1100KDSB at 1.6THz and 1450KDSB at 1.9THz LO frequencies. The HEB heterodyne receiver stability has been analyzed and compared to the HEB stability in the direct detection mode. The optimal local oscillator power was determined and found to be in a 200–500nW range. |
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908 |
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Phillips, T. G.; Jefferts, K. B. |
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A low temperature bolometer heterodyne receiver for Millimeter wave astronomy |
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1973 |
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Rev. Sci. Instrum. |
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Rev. Sci. Instrum. |
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44 |
Issue |
8 |
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1009-1014 |
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InSb HEB mixer |
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Liquid helium cooled InSb hot electronbolometers are used in a balanced mixer configuration as detectors for an imagelessmicrowave receiver. The system is designed for mounting at the prime focus of the National Radio Astronomy Observatory (NRAO) 11 m antenna at Kitt Peak, Arizona, and is suitable for the study of rotational line spectra of interstellar gas molecules. Currently the operating frequency is in the 90–140 GHz band where the double sideband system noise temperature is 250 K. |
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Recommended by Klapwijk |
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927 |
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Shcheslavskiy, V.; Morozov, P.; Divochiy, A.; Vakhtomin, Y.; Smirnov, K.; Becker, W. |
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Erratum: “Ultrafast time measurements by time-correlated single photon counting coupled with superconducting single photon detector” [Rev. Sci. Instrum. 87, 053117 (2016)] |
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Miscellaneous |
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2016 |
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Rev. Sci. Instrum. |
Abbreviated Journal |
Rev. Sci. Instrum. |
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87 |
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6 |
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069901 |
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SSPD, SNSPD, TCSPC, jitter |
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In the original paper1the Ref. 10 should be M. Sanzaro, N. Calandri, A. Ruggeri, C. Scarcella, G. Boso, M. Buttafava, and A. Tosi, Proc. SPIE9370, 93701T (2015). |
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Becker & Hickl GmbH, Nahmitzer Damm 30, Berlin 12277, Germany |
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0034-6748 |
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PMID:27370512 |
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1810 |
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