Time-resolved sequential double ionization of D2 molecules in an intense few-cycle laser pulse
نویسندگان
چکیده
The kinetic energy spectra of D+ ions resulting from the sequential double ionization of D2 molecules in an intense few-cycle laser field are calculated. The D2 molecule is first ionized at its equilibrium distance, followed by further ionization of D2 + at larger internuclear separations. The time evolution of the nuclear wave packet is calculated including loss from ionization by the time-dependent laser field. The calculated D+ energy spectra are compared with the recent experiment, and the time duration between the two ionization events is deduced to subfemtosecond accuracy.
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تاریخ انتشار 2004