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Optical response of...
Optical response of a titanium-based cold-electron bolometer
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- Otto, Ernst, 1971 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Tarasov, Mikhail, 1954 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Grimes, P. K. (författare)
- University Of Oxford,Smithsonian Astrophysical Observatory
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- Chekushkin, Artem, 1991 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Kuzmin, Leonid, 1946 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Yassin, G. (författare)
- University Of Oxford
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(creator_code:org_t)
- 2013-07-04
- 2013
- Engelska.
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Ingår i: Superconductor Science and Technology. - : IOP Publishing. - 0953-2048 .- 1361-6668. ; 26:8
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https://doi.org/10.1...
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Abstract
Ämnesord
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- We present experimental results on the testing of cold-electron bolometer (CEB) detectors comprised of a thin Ti film absorber and two SIN junctions integrated with a planar antenna. The CEB performance was tested in a He-3 sorption cryostat HELIOX-AC-V at bath temperatures of 280-305 mK. The optical response was measured using the hot/cold load method by flipping a Cu reflector opposite a blackbody surface inside a 3 K shield and using a thermal source with variable temperature. In the first experiment, the detector chip was mounted in an optical sample-holder whose aperture was switched towards or away from a blackbody source changing the incident radiation temperature from 3 K to 270 mK. As a result, we measured the optical response to a 3 K/270 mK radiation temperature change. The measured voltage response value for the detector integrated in a double-dipole antenna was Delta V-out = 120 mu V. This corresponds to a noise equivalent power of NEP = V-n/(dV/dP) = 3.5 x 10(-17) W Hz(-1/2), where dV/dP is the voltage to power response obtained from the incoming power estimation based on the Planck formula.
Ämnesord
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
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