Coulomb explosion dynamics of triatomic molecules in laser pulses ranging from 7 to 200fs

Femtosecond laser pulses from 7fs to 200fs have been used to explore the ionization process and dissociation dynamics of triatomic molecules. Time and position sensitive detection allows us to detect each fragment ion in coincidence. We observe and characterize which ionization channels are Coulombic and which are non-Coulombic, and we observe concerted and stepwise processes which involve metastable fragment ions.