Figure 5
Expected angular distribution of photoelectrons emitted from neutral helium upon absorption of a single photon from a linear polarized beam, as described by equation (23). The black surface mesh shows the magnitude of the cross section (radial distance) versus the ejection angle relative to the polarization axis (θ, ψ) while the colored sphere represents the angular distribution of photoelectrons expected from the measurement for single photon ionization of helium with a linearly polarized beam. |