Figure 2
Resonances of Sample A. (a,b) Experimental and (c,d) computational (a,c) amplitude and (b,d) phase of the scattering parameter S21 for the first four modes of Resonator 1 as functions of frequency and magnetic flux. The amplitude of S21 in each subpanel is normalized independently by dividing with the corresponding maximum amplitude. The power in the measurements is approximately −90 dBm at Port 1. The resonance frequencies at half flux quantum are given above the panels, and the simulation parameters are given in Table 1. The measured mode 1 has a lower signal-to-noise ratio compared to the other modes due to unintentional loss near 2.5 GHz in the measurement setup.
