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Tracking nuclear wave-packet dynamics in molecular oxygen ions with few-cycle infrared laser pulses

By S. De, I. A. Bocharova, Maia Magrakvelidze, D. Ray, W. Cao, B. Bergues, Uwe P. E. Thumm, Matthias F. Kling, I. V. Litvinyuk and Charles L. Cocke


We have tracked nuclear wave-packet dynamics in doubly charged states of molecular oxygen using few-cycle infrared laser pulses. Bound and dissociating wave packets were launched and subsequently probed via a pair of 8-fs pulses of 790 nm radiation. Ionic fragments from the dissociating molecules were monitored by velocity-map imaging. Pronounced oscillations in the delay-dependent kinetic energy release spectra were observed. The occurrence of vibrational revivals permits us to identify the potential curves of the O[subscript 2] dication which are most relevant to the molecular dynamics. These studies show the accessibility to the dynamics of such higher-charged molecules

Topics: Nuclear-wave-packet dynamics, Molecular oxygen, Few-cycle infrared laser pulses
Year: 2010
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