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- Bevilacqua, Stella,1981Chalmers tekniska högskola,Chalmers University of Technology (author)
MgB2 Hot-Electron Bolometer Mixers at Terahertz Frequencies
- Article/chapterEnglish2015
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- 2015
- electronicrdacarrier
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- LIBRIS-ID:oai:research.chalmers.se:26c25e44-798b-414c-836b-4ac91c4fe27d
- https://research.chalmers.se/publication/231150URI
- https://doi.org/10.1109/TASC.2014.2365134DOI
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- Language:English
- Summary in:English
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- In this paper, we compare the performance of MgB2 Hot-Electron Bolometer Mixers operating at Local Oscillator frequencies of 0.6 and 1.63 THz. The minimum noise temperatures that were obtained are 700 and 1150 K for 0.6 and 1.63 THz, respectively. The receiver noise bandwidth is of the order of 2.2-3 GHz for 10-nm-thick HEB devices with a Tc of 8.5 K. Sub-micrometer size HEBs were also fabricated with no degradation of the initial film quality when a 20-nm MgB2 film with a Tc of 22 K was used. In the direct detection mode, the maximum voltage responsivity is in the range of 1-2 kV/W at 1.63 THz and the optimal bias current is around 1/4-1/3 of the Ic at 4.2 K.
Subject headings and genre
- TEKNIK OCH TEKNOLOGIER Elektroteknik och elektronik Annan elektroteknik och elektronik hsv//swe
- ENGINEERING AND TECHNOLOGY Electrical Engineering, Electronic Engineering, Information Engineering Other Electrical Engineering, Electronic Engineering, Information Engineering hsv//eng
- NATURVETENSKAP Fysik Den kondenserade materiens fysik hsv//swe
- NATURAL SCIENCES Physical Sciences Condensed Matter Physics hsv//eng
- hot-electron bolometer
- thin film.
- terahertz detector
- MgB2
- HEB mixer
Added entries (persons, corporate bodies, meetings, titles ...)
- Novoselov, Evgenii,1988Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)evgenii (author)
- Cherednichenko, Serguei,1970Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)serguei (author)
- Shibata, HiroyukiNippon Telegraph and Telephone Corporation (author)
- Tokura, YasuhiroNippon Telegraph and Telephone Corporation (author)
- Chalmers tekniska högskolaNippon Telegraph and Telephone Corporation (creator_code:org_t)
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- In:IEEE Transactions on Applied Superconductivity25:3, s. 2301104-1558-25151051-8223
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