4 papers · 1 filter
Fast Ptychographic Near-Field Computed Tomography
Sami Wirtensohn, Silja Flenner, Imke Greving +13
Near-field X-ray ptychography enables quantitative three-dimensional imaging with nanometer-scale resolution, but its broader application is limited by long acquisition times - oft…
Directional Dark Field for Nanoscale Full-Field Transmission X-Ray Microscopy
Sami Wirtensohn, Silja Flenner, Dominik John +12
Dark-field X-ray imaging visualizes structural inhomogeneities through small-angle scattering, but existing directional methods are confined to the micrometer scale. While recent a…
Self-supervised physics-informed generative networks for phase retrieval from a single X-ray hologram
Xiaogang Yang, Dawit Hailu, VojtÄch Kulvait +8
X-ray phase contrast imaging significantly improves the visualization of structures with weak or uniform absorption, broadening its applications across a wide range of scientific d…
Nanoscale Dark-Field Imaging in Full-Field Transmission X-Ray Microscopy
Sami Wirtensohn, Peng Qi, Christian David +3
The dark-field signal uncovers details beyond conventional X-ray attenuation contrast, which is especially valuable for material sciences. In particular, dark-field techniques are…