Josephson effects in an alternating current biased transition edge sensor

Luciano Gottardi; Alex Kozorezov; Hiroki Akamatsu; Jan van der Kuur; Marcel P. Bruijn; Roland H. den Hartog; Richard Hijmering; Pourya Khosropanah; Colin Lambert; Anton. J. van der Linden; Marcel L. Ridder; Toyo Suzuki; Jan R. Gao

doi:10.1063/1.4899065

arXiv · 1604.00549

Josephson effects in an alternating current biased transition edge sensor

Luciano Gottardi·Alex Kozorezov·Hiroki Akamatsu·Jan van der Kuur·Marcel P. Bruijn·Roland H. den Hartog·Richard Hijmering·Pourya Khosropanah·Colin Lambert·Anton. J. van der Linden·Marcel L. Ridder·Toyo Suzuki·Jan R. Gao

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Abstract

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.

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Luciano Gottardi, Alex Kozorezov, Hiroki Akamatsu, Jan van der Kuur, Marcel P. Bruijn, Roland H. den Hartog, Richard Hijmering, Pourya Khosropanah, Colin Lambert, Anton. J. van der Linden, Marcel L. Ridder, Toyo Suzuki, Jan R. Gao. 2016-04-02. Josephson effects in an alternating current biased transition edge sensor. https://doi.org/10.1063/1.4899065

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