Figure 2
a) Single line scans of the normalised pumped current operating in the LPR (red) and the (CPR) (blue). \(V_{\text{ent}}=-425\) mV for both scans. Inset: Tailored trapezoidal signal from the AWG(red) and sinusoidal RF signal(blue). The signals have been converted from voltage to potential energy b) Pump map of \(V_{\text{SD}}\) voltage versus VExit of the normalised pumped current in the LPR. V\(_{\text{ent}}= -530\) mV. c) Pumpmaps of V\(_{\text{ent}}\) versus V\(_{\text{exit}}\) in the LPR showing the transition to higher pumped integer current as the \(V_{\text{SD}}\) voltage is increased in 10 mV steps. The change from a monochromatic RF sinusoidal signal to a synthesised trapezoidal signal, leads to dramatically different pumpmaps when compared to the CPR (Fig. 1b). In the LPR pump maps in b) and c). \(f=181.81\) MHz with \(\text{Amp}=1\) V\(_{pp}\)