Fig. 3.

Delay between the onsets of ground-state bleach and excited-state signature. The experimental data for the bleach signal (blue) are extracted from a region of interest in the Auger spectra from the photon energy region, where the bleach is observable in the near-edge absorption fine structure spectra. For better comparison with the corresponding data set from the region of the nπ* feature (green), the bleach data set is inverted. Both data sets are normalized to the maximum modulation. The time-dependence of the nπ* feature is fitted with the rate equation model. The delay between the bleach and the nπ* feature is clearly visible. All error bars represent the standard error of mean