X-ray imaging, and in particular X-ray tomography, offers unique opportunities to inspect the interior of thick materials in 3D in a non-destructive fashion. To take the achievable resolution to the next level, the most promising techniques are based on coherent lensless imaging, for which the limitations of lens manufacturing are circumvented using iterative phase-retrieval algorithms. Such methods provide quantitative electron density contrast and can be extended to the spectral domain to obtain chemical information as well. In this talk, I will introduce the basics of lensless imaging and ptychography, and highlight the latest results from the Swiss Light Source.

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Bio

Manuel received his Ph.D. from the Institute of Optics in Rochester NY in 2010. Afterwards he joined as scientist the Coherent X-ray Scattering group, which manages and develops the cSAXS beamline, Swiss Light Source, Paul Scherrer Institute. In 2023 Manuel was appointed Associate Professor of Physics in EPF Lausanne and head of the Computational X-ray Imaging group in PSI. Manuel has been twice co-recipient of the Innovation Award on Synchrotron Radiation for 2014 and 2020. He was awarded the prestigious 2019 ICO Prize by the International Commission for Optics and was elected as an Optica Fellow in 2021 and SPIE Fellow in 2022.