Abstract
We report the first demonstration of hard x-ray ptychography using a multislice approach, which can solve the problem of the limited spatial resolution under the projection approximation. We measured ptychographic diffraction patterns of a two-layered object with a gap using 7 keV focused coherent x rays. We successfully reconstructed the phase map of each layer at resolution using a multislice approach, while the resolution was worse than under the projection approximation. The present method has the potential to enable the three-dimensional high-resolution observation of extended thick specimens in materials science and biology.
- Received 12 August 2013
DOI:https://doi.org/10.1103/PhysRevLett.112.053903
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