SIN tunnel junction as a temperature sensor

Details SIN tunnel junction as a temperature sensor SIN tunnel junction as a temperature sensor

Apr 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999spie.3629..364g&link_type=abstract

Proc. SPIE Vol. 3629, p. 364-370, Photodetectors: Materials and Devices IV, Gail J. Brown; Manijeh Razeghi; Eds.

Computer Science

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Scientific paper

The current-voltage characteristics of a superconductor-normal metal tunnel junction (SIN) is very sensitive to the temperature of the normal metal. Therefore SIN junction can be used as a thermometer which can be conveniently integrated into more complicated devices, for example bolometers. We estimate the effect of different types of noise on the sensitivity of such a thermometer. Shot noise of the tunnel junction, amplifier noise and the noise related to the fluctuations of the heat flow through the junction are considered. The performance of the bolometer with SIN junction as a temperature sensor is also discussed.

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