Multiphoton Ionization as a clock to Reveal Molecular Dynamics with Intense Short X-ray Free Electron Laser Pulses
Accelerator Physics
2016-11-04 v3 Atomic Physics
Abstract
We investigate molecular dynamics of multiple ionization in N2 through multiple core-level photoabsorption and subsequent Auger decay processes induced by intense, short X-ray free electron laser pulses. The timing dynamics of the photoabsorption and dissociation processes is mapped onto the kinetic energy of the fragments. Measurements of the latter allow us to map out the average internuclear separation for every molecular photoionization sequence step and obtain the average time interval between the photoabsorption events. Using multiphoton ionization as a tool of multiple-pulse pump-probe scheme, we demonstrate the modification of the ionization dynamics as we vary the x-ray laser pulse duration.
Keywords
Cite
@article{arxiv.1301.6459,
title = {Multiphoton Ionization as a clock to Reveal Molecular Dynamics with Intense Short X-ray Free Electron Laser Pulses},
author = {L. Fang and T. Osipov and B. Murphy and F. Tarantelli and E. Kukk and J. P. Cryan and M. Glownia and P. H. Bucksbaum and R. N. Coffee and M. Chen and C. Buth and N. Berrah},
journal= {arXiv preprint arXiv:1301.6459},
year = {2016}
}
Comments
9 pages, 4 figures