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Semenov, Alexey and Richter, Heiko and Hübers, Heinz-Wilhelm and Il'in, Konstantin and Siegel, Michael (2005) Superconducting noise bolometer for terahertz radiation. Applied Physics Letters, 87 (17), pp. 173508-173511. AIP. DOI: 10.1063/1.2115086
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Official URL: http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=APPLAB000087000017173508000001&idtype=cvips&gifs=yes
Abstract
We present a superconducting noise bolometer that is a bolometric detector sensing radiation via radiation-induced changes of its own microwave noise. The detector represents a nano-strip made from a thin NbN superconducting film. It operates in the superconducting state and carries a supercurrent slightly less than the critical current. Radiation couples with the detector via an immersion lens and a planar antenna, which jointly define the useful spectral range from 1 to 5 THz. At an ambient temperature of 4.2 K the optically measured noise-equivalent power amounts at ≈ 10<sup>-13</sup> W Hz<sup>-1/2</sup> along with a time-constant of approximately 150 ps.
| Item URL in elib: | https://elib.dlr.de/20168/ | ||||||||||||||||||
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| Document Type: | Article | ||||||||||||||||||
| Title: | Superconducting noise bolometer for terahertz radiation | ||||||||||||||||||
| Authors: |
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| Date: | 24 October 2005 | ||||||||||||||||||
| Journal or Publication Title: | Applied Physics Letters | ||||||||||||||||||
| Refereed publication: | Yes | ||||||||||||||||||
| Open Access: | No | ||||||||||||||||||
| Gold Open Access: | No | ||||||||||||||||||
| In SCOPUS: | No | ||||||||||||||||||
| In ISI Web of Science: | Yes | ||||||||||||||||||
| Volume: | 87 | ||||||||||||||||||
| DOI : | 10.1063/1.2115086 | ||||||||||||||||||
| Page Range: | pp. 173508-173511 | ||||||||||||||||||
| Publisher: | AIP | ||||||||||||||||||
| Status: | Published | ||||||||||||||||||
| Keywords: | Detection of terahertz radiation, noise, superconducting bolometer | ||||||||||||||||||
| HGF - Research field: | Aeronautics, Space and Transport (old) | ||||||||||||||||||
| HGF - Program: | Space (old) | ||||||||||||||||||
| HGF - Program Themes: | W EW - Erforschung des Weltraums | ||||||||||||||||||
| DLR - Research area: | Space | ||||||||||||||||||
| DLR - Program: | W EW - Erforschung des Weltraums | ||||||||||||||||||
| DLR - Research theme (Project): | W - Projekt SOFIA (old) | ||||||||||||||||||
| Location: | Berlin-Adlershof | ||||||||||||||||||
| Institutes and Institutions: | Institute of Planetary Research > Terahertz and Infrared Sensors | ||||||||||||||||||
| Deposited By: | Semenov, Prof.Dr. Alexey | ||||||||||||||||||
| Deposited On: | 11 Dec 2005 | ||||||||||||||||||
| Last Modified: | 27 Apr 2009 04:45 |
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