Capturing Photoelectron Motion with Guiding Centers.

Phys Rev Lett

School of Physics, Georgia Institute of Technology, Atlanta, Georgia 30332-0430, USA.

Published: September 2018

Electron motion in combined strong laser and Coulomb fields is central to laser-matter interactions. By mapping this problem onto the motion of a guiding center, we derive a reduced model which naturally embeds important Coulomb effects such as focusing and asymmetry, and clearly distinguishes direct versus rescattered electron ionization processes. We demonstrate the power of this tool by unraveling the bifurcation in photoelectron momentum distributions seen in experiments.

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http://dx.doi.org/10.1103/PhysRevLett.121.113202DOI Listing

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