Figure 2: Proton momentum and asymmetry.
From: Observing electron localization in a dissociating H2+ molecule in real time
(a) Measured proton momentum distribution in laser polarization plane (Px–Pz plane) with pump pulse only (left), for pump–probe delay of 6 fs (middle) and for delay of 45 fs (right). Measured (b) and calculated (d) delay-dependent energy-resolved asymmetry of proton emission. The data for zero delay (indicated by the arrow in b) are measured with the pump pulse only. Measured (c) and calculated (e) delay-dependent asymmetry of proton emission for kinetic energy release (KER) from 2.8 to 3.0 eV. The red dashed line in c indicates the value of the asymmetry measured with pump pulse only. Error bars for measured asymmetry are obtained by propagating the estimated shot noise of the corresponding counts.
