THEORETICAL PRINCIPLES OF HOLOGRAPHIC CRYSTALLOGRAPHY

We examine the theory of electron holography with atomic electron sources and its potential for local crystallography. We simulate electron diffraction pattern by full multiple-scattering cluster calculations and examine the nature of the reconstructed images. We draw attention to the power of the zone-plate model of holography for understanding the results, and in particular to the optimal reconstructing properties of the Gabor zone plate, which in turn suggests the form of an optimal reconstruction algorithm.