Fig. 2: Laser-field induced currents in gases.
From: The emergence of macroscopic currents in photoconductive sampling of optical fields
a Experimental setup (see text for details). OAP: off-axis parabola. A change of the wedge position dx results in a change of the amount of glass inserted in the beampath. The few-cycle pulses are shown for two CEP values that are shifted by π (indicated by the thick and thin red lines). b Current dispersion scans obtained by moving the fused silica wedges when recording currents from electrode A (blue line) and B (red line). The line thickness corresponds to the standard deviation of three consecutive measurements. The inset shows a zoomed view (black bar in b) of the signal from electrode A with individual datapoints marked as dots and errorbars corresponding to the standard deviation.
