Intensity-dependent scattering rings in high order above-threshold ionization
Baorui YangDepartment of Chemistry, Brookhaven National Laboratory, Upton, New York 11973Kenneth J. SchäferDepartment of Chemistry, Brookhaven National Laboratory, Upton, New York 11973Barry C. WalkerDepartment of Chemistry, Brookhaven National Laboratory, Upton, New York 11973K. C. KulanderDepartment of Chemistry, Brookhaven National Laboratory, Upton, New York 11973Pierre AgostiniDepartment of Chemistry, Brookhaven National Laboratory, Upton, New York 11973L. F. DiMauroDepartment of Chemistry, Brookhaven National Laboratory, Upton, New York 11973
1993en
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Аннотация
Angular distributions of high energy photoelectrons from Xe and Kr, excited by a 50 ps, 1.05 \ensuremath{\mu}m laser, are presented. In Xe, strong, narrow rings \ensuremath{\sim}45 \ifmmode^\circ\else\textdegree\fi{} off the polarization axis appear in a limited energy range centered around 9${\mathit{U}}_{\mathit{p}}$, where ${\mathit{U}}_{\mathit{p}}$ is the ponderomotive energy. This effect is much weaker in Kr. Single active electron calculations agree well with these observations. We conclude that the rings result from single-electron ionization dynamics, most likely involving rescattering from the ion core of the tunneling component of the continuum wave function.
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