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Semenov, A. D.; Hübers, Heinz-Wilhelm; Richter, H.; Birk, M.; Krocka, M.; Mair, U.; Vachtomin, Yu. B.; Finkel, M. I.; Antipov, S. V.; Voronov, B. M.; Smirnov, K. V.; Kaurova, N. S.; Drakinski, V. N.; Gol'tsman, G. N. |
| Title |
Superconducting hot-electron bolometer mixer for terahertz heterodyne receivers |
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Journal Article |
| Year |
2003 |
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IEEE Trans. Appl. Supercond. |
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13 |
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2 |
Pages |
168-171 |
| Keywords |
NbN HEB mixers |
| Abstract |
We present recent results showing the development of superconducting NbN hot-electron bolometer mixer for German receiver for astronomy at terahertz frequencies and terahertz limb sounder. The mixer is incorporated into a planar feed antenna, which has either logarithmic spiral or double-slot configuration, and backed on a silicon lens. The hybrid antenna had almost frequency independent and symmetric radiation pattern slightly broader than expected for a diffraction limited antenna. At 2.5 THz the best 2200 K double side-band receiver noise temperature was achieved across a 1 GHz intermediate frequency bandwidth centred at 1.5 GHz. For this operation regime, a receiver conversion efficiency of -17 dB was directly measured and the loss budget was evaluated. The mixer response was linear at load temperatures smaller than 400 K. Implementation of the MgO buffer layer on Si resulted in an increased 5.2 GHz gain bandwidth. The receiver was tested in the laboratory environment by measuring a methanol emission line at 2.5 THz. |
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Ozhegov, R.; Morozov, D.; Maslennikov, S.; Okunev, O.; Smirnov, K.; Gol'tsman, G. |
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Submillimeter wave range imaging system for registering human body radiation and finding out the things covered under clothes |
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Conference Article |
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2004 |
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Proc. 3rd Int. exhibition and conf. Non-Destructive Testing Equipment and Devices |
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Moscow |
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345 |
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Ожегов, Р. В.; Морозов, Д. В.; Масленников, С. Н.; Смирнов, К. В.; Окунев, О. В.; Гольцман, Г. Н. |
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Тепловизор субмиллиметрового диапазона волн для регистрации теплового излучения тела человека и обнаружения скрытых под одеждой предметов |
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Conference Article |
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2004 |
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3-я Международная выставка и конференция Неразрушающий контроль и техническая диагностика в промышленности |
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Москва |
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russian |
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Duplicated as 345 |
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Ozhegov, R.; Maslennikov, S.; Morozov, D.; Okunev, O.; Smirnov, K.; Gol'tsman, G. |
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Imaging system for submillimeter wave range |
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Conference Article |
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2004 |
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Proc. Tenth All-Russian sceintific conference of student-physicists and young sceintists (VNKSF-10) |
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RPLAB @ s @ thzimaging_vnksf10_2004 |
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Ожегов, Р. В.; Масленников, С. Н.; Морозов, Д. В.; Окунев, О. В.; Смирнов, К. В.; Гольцман, Г. Н. |
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Тепловизор субмиллиметрового диапазона длин волн |
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Conference Article |
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2004 |
Publication |
Десятая всероссийская научная конференция студентов-физиков и молодых ученых (ВНКСФ-10) |
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348 |
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