Evaluation of partial coherence correction in X-ray ptychography Article Swipe
Nicolas Burdet
,
Xiaowen Shi
,
Daniel Parks
,
Jesse N. Clark
,
Xiaojing Huang
,
S. D. Kevan
,
Ian Robinson
·
YOU?
·
· 2015
· Open Access
·
· DOI: https://doi.org/10.1364/oe.23.005452
YOU?
·
· 2015
· Open Access
·
· DOI: https://doi.org/10.1364/oe.23.005452
Coherent X-ray Diffraction Imaging (CDI) and X-ray ptychography both heavily rely on the high degree of spatial coherence of the X-ray illumination for sufficient experimental data quality for reconstruction convergence. Nevertheless, the majority of the available synchrotron undulator sources have a limited degree of partial coherence, leading to reduced data quality and a lower speckle contrast in the coherent diffraction patterns. It is still an open question whether experimentalists should compromise the coherence properties of an X-ray source in exchange for a higher flux density at a sample, especially when some materials of scientific interest are relatively weak scatterers. A previous study has suggested that in CDI, the best strategy for the study of strong phase objects is to maintain a high degree of coherence of the illuminating X-rays because of the broadening of solution space resulting from the strong phase structures. In this article, we demonstrate the first systematic analysis of the effectiveness of partial coherence correction in ptychography as a function of the coherence properties, degree of complexity of illumination (degree of phase diversity of the probe) and sample phase complexity. We have also performed analysis of how well ptychographic algorithms refine X-ray probe and complex coherence functions when those variables are unknown at the start of reconstructions, for noise-free simulated data, in the case of both real-valued and highly-complex objects.
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Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1364/oe.23.005452
- OA Status
- gold
- Cited By
- 41
- References
- 29
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W2059057028
All OpenAlex metadata
Raw OpenAlex JSON
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https://openalex.org/W2059057028Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.1364/oe.23.005452Digital Object Identifier
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Evaluation of partial coherence correction in X-ray ptychographyWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
-
2015Year of publication
- Publication date
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2015-02-23Full publication date if available
- Authors
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Nicolas Burdet, Xiaowen Shi, Daniel Parks, Jesse N. Clark, Xiaojing Huang, S. D. Kevan, Ian RobinsonList of authors in order
- Landing page
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https://doi.org/10.1364/oe.23.005452Publisher landing page
- Open access
-
YesWhether a free full text is available
- OA status
-
goldOpen access status per OpenAlex
- OA URL
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https://doi.org/10.1364/oe.23.005452Direct OA link when available
- Concepts
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Ptychography, Degree of coherence, Optics, Coherence (philosophical gambling strategy), Phase retrieval, Diffraction, Phase problem, Physics, Coherence theory, Synchrotron, Coherence length, Fourier transform, Superconductivity, Quantum mechanics, Beam (structure)Top concepts (fields/topics) attached by OpenAlex
- Cited by
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41Total citation count in OpenAlex
- Citations by year (recent)
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2025: 3, 2024: 4, 2023: 1, 2022: 3, 2021: 2Per-year citation counts (last 5 years)
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29Number of works referenced by this work
- Related works (count)
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10Other works algorithmically related by OpenAlex
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