Multi-beam ptychography with coded Fresnel zone plates

Mattias Åstrand; Maik Kahnt; Ulf Johansson; Ulrich Vogt

doi:10.1117/12.2676657

5 October 2023 Multi-beam ptychography with coded Fresnel zone plates

Mattias Åstrand, Maik Kahnt, Ulf Johansson, Ulrich Vogt

Proceedings Volume 12698, X-Ray Nanoimaging: Instruments and Methods VI; 1269807 (2023) https://doi.org/10.1117/12.2676657
Event: SPIE Optical Engineering + Applications, 2023, San Diego, California, United States

Abstract

X-ray ptychography is often implemented for nanoimaging at synchrotron radiation sources and extensions are being developed to make experiments faster. This work is on multi-beam ptychography with Fresnel zone plates that have a small lateral separation, enabling the imaging of an extended field of view without increasing exposure time. Sectional zone inversion is implemented for coding respective probes and up to three Fresnel zone plates are successfully used in parallel. The speed-up achieved, compared to single beam ptychography, is linear with the number of probes. The combination of versatility of the fabrication process for the Fresnel zone plates and performance enhancement by scanning in multi-beam mode makes this an optimal solution for studying samples fast and obtaining enlarged fields of view.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Mattias Åstrand, Maik Kahnt, Ulf Johansson, and Ulrich Vogt "Multi-beam ptychography with coded Fresnel zone plates", Proc. SPIE 12698, X-Ray Nanoimaging: Instruments and Methods VI, 1269807 (5 October 2023); https://doi.org/10.1117/12.2676657

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