The photoionization of an atom is examined in the presence of a foreign atom. We find that a two-photon radiative collision process induces large cross sections for electron continuum-continuum scattering. The enhancement is caused by an intensity-induced collisional shift which, when used to cancel out the collisional dephasing between the initial and final scattering states at wide range of internuclear separations, enhances the electron continuum-continuum scattering process.
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics