Journal article · Preprint article
Direct three-dimensional tomographic reconstruction and phase retrieval of far-field coherent diffraction patterns
Department of Energy Conversion and Storage, Technical University of Denmark1
Technical University of Denmark2
Scientific Computing, Department of Applied Mathematics and Computer Science, Technical University of Denmark3
Department of Applied Mathematics and Computer Science, Technical University of Denmark4
Imaging and Structural Analysis, Department of Energy Conversion and Storage, Technical University of Denmark5
We present an alternative numerical reconstruction algorithm for direct tomographic reconstruction of a sample's refractive indices from the measured intensities of its far-field coherent diffraction patterns. We formulate the well-known phase-retrieval problem in ptychography in a tomographic framework which allows for simultaneous reconstruction of the illumination function and the sample's refractive indices in three dimensions.
Our iterative reconstruction algorithm is based on the Levenberg-Marquardt algorithm and we demonstrate the performance of our proposed method with simulated and real datasets.
Language: | English |
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Year: | 2019 |
ISSN: | 10941622 , 10502947 , 24699926 and 24699934 |
Types: | Journal article and Preprint article |
DOI: | 10.1103/PhysRevA.99.023801 |
ORCIDs: | Andersen, Martin Skovgaard and Andreasen, Jens Wenzel |