Ptychography

Ptychography is a technique invented by Walter Hoppe that aims to solve the diffraction-pattern phase problem by interfering adjacent Bragg reflections coherently and thereby determine their relative phase. In the original formulation, Hoppe envisaged that such interference could be effected by placing a very narrow aperture in the plane of the sp...
Found on http://en.wikipedia.org/wiki/Ptychography
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