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Fig. 1 | Advanced Structural and Chemical Imaging

Fig. 1

From: A streaming multi-GPU implementation of image simulation algorithms for scanning transmission electron microscopy

Fig. 1

Flow chart of STEM simulation algorithm steps. a All atoms are separated into slices at different positions along the beam direction, and b atomic scattering factors are used to compute projected potential of each slice. c Multislice algorithm, where each converged probe is initialized, d propagated through each of the sample slices defined in (b), and then e output either as images, or radially integrated detectors. f PRISM algorithm where g converged probes are defined in coordinate system downsampled by factor f as a set of plane waves. h Each required plane wave is propagated through the sample slices defined in (b). i Output probes are computed by cropping subset of plane waves multiplied by probe complex coefficients, and j summed to form output probe, k which is then saved

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