Dissociation of water molecules in carrier-envelope phase controlled intense few-cycle laser fields

This papers reports the momentum distribution of proton fragments created in the dissociative ionization process of water molecules that are exposed to an intense ultrashort laser field as a function of the laser pulse duration (6 - 20 fs). When the pulse duration is 6 fs, we investigated the dependence of the momentum distribution on carrier-envelope phase (CEP) of the incident laser field. From the analysis of the time-of- flight mass spectrum, we discuss the dissociation processes of water molecules in an intense ultrafast laser field.