Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
| Article number | 162605 |
|---|---|
| <mark>Journal publication date</mark> | 20/10/2014 |
| <mark>Journal</mark> | Applied Physics Letters |
| Issue number | 16 |
| Volume | 105 |
| Number of pages | 4 |
| Publication Status | Published |
| <mark>Original language</mark> | English |
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.