A new approach for three-dimensional atomic-image reconstruction from a single-energy photoelectron hologramT. Matsushita1, A. Agui2 and A. Yoshigoe2
1 Japan Synchrotron Radiation Research Institute (JASRI), SPring-8 1-1-1 Kouto, Mikazuki-cho, Sayo-gun Hyogo 679-5198, Japan
2 Synchrotron Radiation Research Center, Japan Atomic Energy Research Institute (JAERI) - 1-1-1 Kouto, Mikazuki-cho, Sayo-gun, Hyogo 679-5148, Japan
(Received 2 July 2003; accepted in final form 13 November 2003)
A "scattering pattern matrix" method is proposed here to overcome the difficulties presented by photoelectron holography, such as forward-scattering and multi-energy problems. This method makes it possible to reconstruct a three-dimensional atomic arrangement from a single-energy hologram. We have utilized the "scattering pattern matrix" that includes the angular variation of the scattered object waves, and we have adopted a special average process and the gradient projection method for minimizing the mean-squared error. The reconstruction of the bulk structure is demonstrated by using an experimental 2s single-energy hologram. The holographic reconstruction provided a three-dimensional image with a size of 10 along both the vertical and horizontal axes.
61.14.-x - Electron diffraction and scattering.
42.40.-i - Holography.
79.60.-i - Photoemission and photoelectron spectra.
© EDP Sciences 2004