SUPPRESSED FORWARD SCATTERING IN PHOTOELECTRON HOLOGRAPHY

The anisotropic nature of photoelectron source waves may be exploited to suppress forward scattering in photoelectron diffraction, Theoretic al simulations show that this is the case for a geometry where the sca ttered electrons are measured close to a node of the electron source w ave, As a consequence the quality of holographic reconstructions from such data improves considerably, The optimum geometry between the exci tation source and the electron analyzer is evaluated quantitatively fo r the case of Mg K alpha excited C1s electrons in CO molecules.