Extended Data Figure 3: Intensity calibration of the experimental data.
From: Reconstruction and control of a time-dependent two-electron wave packet
a, Calculated absorbance for a 7 fs, ∼730 nm VIS laser pulse at increasing intensity. b, Experimentally measured absorbance for increasing openings of the iris diaphragm. For a and b, the time delay was set to where the Autler–Townes splitting is at maximum, averaged over two modulation periods. c, The comparison of maximum absorbance of the left-shifting 2s2p line (starting from 60.15 eV) between numerical and experimental results yields an in situ mapping between the VIS intensity and the iris opening in the experiment (black line). The grey shaded area denotes the standard deviation, taking into account different VIS durations and an additional comparison near 0 fs time delay, and thus represents the systematic uncertainty of the monotonically increasing intensity-calibration curve.
