June 2019
Spotlight Summary by David Paganin
Rigorous multi-slice wave optical simulation of x-ray propagation in inhomogeneous space
The multi-slice method has taken a major leap forward with this new paper by Munro. Multi-slice theory was originally developed in the context of electron optics, by Cowley and Moodie, in the 1950s. It has proven to be extraordinarily useful in numerous applications to electron optics. As its name implies, multi-slice is a high-energy approximation whereby a matter or radiation wave field is propagated sequentially through consecutive slices in an extended scattering volume. While this method is not restricted to electron optics in its applicability, its uptake outside this domain has been curiously slow. The tide is beginning to turn, however, with several groups in recent years having demonstrated the utility of multi-slice concepts in x-ray optics. Munro's paper gives much additional momentum to this emerging trend in x-ray optics, by rigorously extending the method to divergent wave fronts diffracted by an extended sample, a situation that occurs rather often in coherent x-ray optics. The theory is elegant, and the paper a joy to read. The applications of this new work are legion. I warmly recommend Munro's paper to you.
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Article Information
Rigorous multi-slice wave optical simulation of x-ray propagation in inhomogeneous space
Peter R. T. Munro
J. Opt. Soc. Am. A 36(7) 1197-1208 (2019) View: Abstract | HTML | PDF