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Noise measurements ...
Noise measurements of the low Tc MgB2 HEB mixer at 1.6THz and 2.6THz
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- Novoselov, Evgenii, 1988 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Bevilacqua, Stella, 1981 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Cherednichenko, Serguei, 1970 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Shibata, Hiroyuki (författare)
- Nippon Telegraph and Telephone Corporation
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- Tokura, Yasuhiro (författare)
- Nippon Telegraph and Telephone Corporation
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(creator_code:org_t)
- 2015
- 2015
- Engelska.
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Ingår i: 26th International Symposium on Space Terahertz Technology March 16-18, 2015, Cambridge, United States. ; , s. P-31
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Abstract
Ämnesord
Stäng
- We present results on MgB2 hot-electron bolometer noise measurements to show reproducibility of achieved results and robustness of the fabricated devices, which being passivated with silicon nitride shows the same performance after 1.5 year storing in nitrogen atmosphere. Noise temperature measurements were performed for the HEB made of 10nm MgB2 thin film on Al2O3 with Tc of 8.5K for 1.6THz LO at 2.7K and 4.2K. The minimum double side band noise temperatures corrected for optical losses for different bath temperatures were 700K and 1150K, whereas the noise bandwidth was 3.2GHz and 3.5GHz, respectively. The mixer output noise temperature and the conversion gain were 26K and -17.7dB, 27K and -14.9dB, respectively. For 2.6THz LO at 2.7K the corresponding values are 1200K and 3.7GHz.
Ämnesord
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Nanoteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Nano-technology (hsv//eng)
Publikations- och innehållstyp
- kon (ämneskategori)
- ref (ämneskategori)