The aim of the Optimal Imaging and Tomography Group (OptImaTo) is to push the limits of X-ray imaging techniques towards ever higher resolution and higher contrast sensitivity. In particular, we look at means of using coherence and the related interference and diffraction phenomena as tools to efficiently encode nanometer-scale information from samples of interest. Decoding this information requires sophisticated algorithmic techniques, which are a specialty of our group.
The two main techniques applied and investigated in our group are X-ray ptychography and speckle-based X-ray imaging.