Figure 7

Normalized H₃ ⁺ and D₃ ⁺ yields from dissociative ionization of different organic molecules as a function of pump-probe delay. Shown in the figure are H₃ ⁺ from ethylene glycol (orange solid line), H₃ ⁺ from acetone (green solid line), and D₃ ⁺ from CD₃OD (magenta solid line). Normalization was performed with respect to the yields at negative time delays (see Fig. 5). Corresponding exponential fits are shown by black lines.