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Baselmans, J. J. A.; Hajenius, M.; Gao, J. R.; Klapwijk, T. M.; de Korte, P. A. J.; Voronov, B.; Gol'tsman, G. |
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Title |
Doubling of sensitivity and bandwidth in phonon cooled hot electron bolometer mixers |
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Journal Article |
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2004 |
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Appl. Phys. Lett. |
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Appl. Phys. Lett. |
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84 |
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11 |
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1958-1960 |
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NbN HEB mixers |
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Abstract |
We demonstrate that the performance of NbN lattice cooled hot electron bolometer mixers depends strongly on the interface quality between the bolometer and the contact structure. We show experimentally that both the receiver noise temperature and the gain bandwidth can be improved by more than a factor of 2 by cleaning the interface and adding an additional superconducting interlayer to the contact pad. Using this we obtain a double sideband receiver noise temperature TN,DSB=950 K
at 2.5 THz and 4.3 K, uncorrected for losses in the optics. At the same bias point, we obtain an IF gain bandwidth of 6 GHz. |
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Alexandre Karpov; David Miller; Rice, Frank R.; Stern, Jeffrey A.; Bruce Bumble; LeDuc, Henry G.; Jonas Zmuidzinas |
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Title |
Low-noise SIS mixer for far-infrared radio astronomy |
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2004 |
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Proc. SPIE |
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5498 |
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616-621 |
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Glasgow, Scotland, UK |
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RPLAB @ s @ nt_SIS_550at1p2THz |
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353 |
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Kaurova, N. S.; Finkel, M. I.; Maslennikov, S. N.; Vahtomin, Yu. B.; Antipov, S. V.; Smirnov, K. V.; Voronov, B. M.; Gol'tsman, G. N.; Ilyin, K. S. |
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Submillimeter mixer based on YBa2Cu3O7-x thin film |
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2004 |
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Proc. 1-st conf. Fundamental problems of high temperature superconductivity |
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291 |
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HTS, HEB mixer |
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Moscow-Zvenigorod |
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Moscow-Zvenigorod |
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Каурова, Н. С.; Финкель, М. И.; Масленников, С. Н.; Вахтомин, Ю. Б.; Антипов, С. В.; Смирнов, К. В.; Воронов, Б. М.; Гольцман, Г. Н.; Ильин, К. С. |
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Смеситель субмиллиметрового диапазона длин волн на основе тонкой пленки YBa2Cu3O7-x |
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2004 |
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1-я международная конференция Фундаментальные проблемы высокотемпературной сверхпроводимости |
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291 |
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Москва-Звенигород |
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Москва-Звенигород |
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russian |
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RPLAB @ s @ htsmix_zvenigorod_2004_rus |
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356 |
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Moore, D.P.; Remedios, J. J.; Waterfall, A. M.; Burgess, A. |
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Measuring halocarbons from the MIPAS instrument |
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Miscellaneous |
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2004 |
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RPLAB @ s @ |
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441 |
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