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Author |
Tetsu Suzuki; Chris Mann; Takanari Yasui; Hirotomo Fujishima; Koji Mizuno |
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Title |
Quasi–integrated planar Schottky barrier diodes for 2.5 THz receivers |
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Year |
1998 |
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Proc. 9th Int. Symp. Space Terahertz Technol. |
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187 |
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RPLAB @ s @ schottky_Tn_24000_at_2p5THz |
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284 |
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Maddison, B. J.; Martin, R. J.; Oldfield, M. L.; Mann, C. M.; Matheson, D. N.; Ellison, B. N.; Thornton, J.; Hall, W. J.; Lamarre, D. M. |
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Title |
A compact 500 GHz planar schottky siode receiver with a wide instantaneous bandwidth |
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Conference Article |
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Year |
1998 |
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Proc. 9th Int. Symp. Space Terahertz Technol. |
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367 |
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RPLAB @ s @ schottky_Tn_4800_at_p5THz |
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286 |
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Author |
Brown, Robert. L. |
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Title |
Technical specification of the Millimeter Array |
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Conference Article |
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1998 |
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Proc. SPIE, Advanced Technology MMW, Radio, and Terahertz Telescopes, vol. 3357 |
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231-237 |
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Phillips, Thomas G. |
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Address is unknown |
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RPLAB @ s @ ALMA_tech |
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287 |
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Kawamura, J. H.; Tong, C.-Y.E.; Blundell, R.; Cosmo Papa, D.; Hunter, T. R.; Gol'tsman, G.; Cherednichenko, S.; Voronov, B.; Gershenzon, E. |
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Title |
An 800 GHz NbN phonon-cooled hot-electron bolometer mixer receiver |
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Journal Article |
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1999 |
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IEEE Trans. Appl. Supercond. |
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IEEE Trans. Appl. Supercond. |
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9 |
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2 |
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3753-3756 |
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NbN HEB mixers |
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We describe a heterodyne receiver developed for astronomical applications to operate in the 350 /spl mu/m atmospheric window. The waveguide receiver employs a superconductive NbN phonon-cooled hot-electron bolometer mixer. The double sideband receiver noise temperature closely follows 1 kGHz/sup -1/ across 780-870 GHz, with the intermediate frequency centered at 1.4 GHz. The conversion loss is about 15 dB. The receiver was installed for operation at the University of Arizona/Max Planck Institute for Radio Astronomy Submillimeter Telescope facility. The instrument was successfully used to conduct test observations of a number of celestial sources in a number of astronomically important spectral lines. |
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1051-8223 |
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288 |
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Author |
Yagoubov, Pavel; Kroug, Matthias; Merkel, Harald; Kollberg, Erik; Schubert, Josef; Hübers, Heinz-Wilhelm |
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Title |
NbN hot electron bolometric mixers at frequencies between 0.7 and 3.1 THz |
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Journal Article |
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1999 |
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Supercond. Sci. Technol. |
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Supercond. Sci. Technol. |
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12 |
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11 |
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989-991 |
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NbN HEB mixers |
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The performance of NbN-based phonon-cooled hot electron bolometric (HEB) quasioptical mixers is investigated in the 0.7-3.1 THz frequency range. The devices are made from a 3.5-4 nm thick NbN film on high resistivity Si and integrated with a planar spiral antenna on the same substrate. The length of the bolometer microbridge is 0.1-0.2 µm; the width is 1-2 µm. The best results of the DSB receiver noise temperature measured at 1.5 GHz intermediate frequency are: 800 K at 0.7 THz, 1100 K at 1.6 THz, 2000 K at 2.5 THz and 4200 K at 3.1 THz. The measurements were performed with a far infrared laser as the local oscillator (LO) source. The estimated LO power requirement is less than 500 nW at the receiver input. First results on spiral antenna polarization measurements are reported. |
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0953-2048 |
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295 |
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