Fig. 4
From: Ultraslow isomerization in photoexcited gas-phase carbon cluster \({{\rm C}}_{10}^ -\)
Normalized neutral counts as a function of time after laser interaction with \({{\rm C}}_{10}^ -\). a Photoexcitation energies from below to just above the isomerization barrier, b photoexcitation energies well above the barrier. The results shown here for each photon energy were obtained by collecting data for ~105 trapping cycles. The zero of the time axis is the time of laser interaction. The contribution of neutrals produced due to residual gas collisions has been subtracted and the data normalized with respect to background and laser photon counts. The symbols are the experimental data. The error bars are the standard deviation of the experimental data. The lines are from theoretical calculations using the model. The dashed lines denote contributions from one-photon excitations while the dotted lines are due to excitations from two photons. The solid lines represent the contribution from both and agree well with the experimental data
