Ponderomotive scattering strongly affects photoelectron spectra in above-threshold ionization. We review experimental studies of intensity-dependent angular distributions and inelastic electron scattering that demonstrate how electrons may be scattered, accelerated, or decelerated by the laser beam after photoionization.
© 1987 Optical Society of America
P. H. Bucksbaum, R. R. Freeman, M. Bashkansky, and T. J. McIlrath, "Role of the ponderomotive potential in above-threshold ionization," J. Opt. Soc. Am. B 4, 760-764 (1987)