Extended Data Fig. 1: Time-dependent photoelectron spectra of QC with and without pump pulse.
From: Ultrafast electronic relaxation pathways of the molecular photoswitch quadricyclane
During the pump-probe scans, the UV laser was present only for every second FEL shot, such that data with and without pump pulse were recorded in parallel. All data presented in Fig. 2 of the main text are shown as a difference signal of all the accumulated ‘pump on’ (a) minus ‘pump off’ (b) spectra at each delay point. Note the log scale for the color map in the above spectra to show the weak pump-probe signal in the non-subtracted spectra.
