Ptychographic X-ray imaging is a powerful technique for extracting detailed phase (and hence structural) information from weakly absorbing objects. Here it is shown how this technique can be combined with methods for tomographic reconstruction to generate full three-dimensional maps of the object under investigation. The approach has sensitivity to density variations of less than one per cent, and can resolve structures on the 100 nm length scale.
- Martin Dierolf
- Andreas Menzel
- Franz Pfeiffer
