Figure 3

a) Pumpmaps of V\(_{\text{ent}}\) versus V\(_{\text{exit}}\) in the CPR for plateaus five and seven. \(\log _{10}|n-\frac{I}{ef}|\) is represented by the colourbar. b) Pumpmaps of \(V_{\text{SD}}\) Voltage versus V\(_{ \text{exit}}\) in the LPR for plateaus five and seven. \(\log _{10}|n-\frac{I}{ef}|\) is represented by the colourbar. The white stars indicate the [x,y] position of the minimum value of \(\log _{10}|n-\frac{I}{ef}|\), with the numerical value quoted in the white boxes. In the CPR, \(f=180\) MHz with amplitude \(\text{Amp}=1\) V\(_{ \text{pp}}\) and \(V_{\text{SD}}=0\) mV. In LPR the fundamental is \(f = 181.81\) MHz with \(\text{Amp}=1\) V\(_{\text{pp}}\) and V\(_{ \text{ent}}=-530\) mV