Abstract
We use classical electron ensembles and the aligned-electron approximation
to examine the effect of laser pulse duration on the dynamics of
strong-field double ionization. We cover the range of intensities
10(14)-10(16) W/cm(2) for the laser wavelength 780 nm. The classical
scenario suggests that the highest rate of recollision occurs early
in the pulse and promotes double-ionization production in few-cycle
pulses. In addition, the purely classical ensemble calculation predicts
an exponentially decreasing recollision rate with each subsequent
half cycle. We confirm the exponential behavior by trajectory back
analysis.
Users
Please
log in to take part in the discussion (add own reviews or comments).