Fig. 3: Preliminary characterization of the detector.
From: Detection of single-mode thermal microwave photons using an underdamped Josephson junction
a Current-voltage characteristics of the sample at 17 mK, sequentially measured 10 times to demonstrate setup stability. Inset: Example of a single-shot measurement with bias current rise and fall times of 3 ms each. b Mean switching times of the SPD at 17 mK, showing significant reductions in dark counts due to filtering improvements over several months (dots - experiment, solid curves - theory). Error bars are smaller than the dot size.
