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Updated: Aug 27, 2025

Spatial Separation of Molecular Conformers and Clusters
Published on: January 9, 2014
Strong Field Double Ionization of Formaldehyde Investigated Using Momentum Resolved Covariance Imaging and Trajectory
Chuan Cheng1, Vaibhav Singh2, Spiridoula Matsika2
1Department of Physics and Astronomy, Stony Brook University, Stony Brook, New York11794-3800, United States.
Abstract:
We use covariance velocity map imaging of fragment ions from the strong field double ionization of formaldehyde in conjunction with trajectory surface hopping calculations to determine the ionization yields to different singlet and triplet states of the dication. The calculated kinetic energy release for trajectories initiated on different electronic states is compared with the experimental values based on momentum resolved covariance measurements. We determine the state resolved double ionization yields as a function of laser intensity and pulse duration down to 6 fs (two optical cycles).
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