Josephson effects in an alternating current biased transition edge sensor
- Gottardi, L.
- Kozorezov, A.
- Akamatsu, H.
- van der Kuur, J.
- Bruijn, M. P.
- den Hartog, R. H.
- Hijmering, R.
- Khosropanah, P.
- Lambert, Colin
- van der Linden, A. J.
- Ridder, M. L.
- Suzuki, T.
- Gao, J. R.
Publication date
October 2014
DOI Publisher
AIP Publishing ISSN
0003-6951 Citation count (estimate)
7Abstract
We report the experimental evidence of the ac Josephson effect in a transition edge sensor (TES) operating in a frequency domain multiplexer and biased by ac voltage at MHz frequencies. The effect is observed by measuring the non-linear impedance of the sensor. The TES is treated as a weakly linked superconducting system and within the resistively shunted junction model framework. We provide a full theoretical explanation of the results by finding the analytic solution of the non-inertial Langevian equation of the system and calculating the non-linear response of the detector to a large ac bias current in the presence of noise. (C) 2014 AIP Publishing LLC
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