Efficient use of coherent X-rays in ptychography: Towards high-resolution and high-throughput observation of weak-phase objects Article Swipe
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· 2016
· Open Access
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· DOI: https://doi.org/10.1063/1.4942105
The efficient use of coherent X-rays is a crucial issue for ptychography at synchrotron facilities. We propose a method for optimizing the population of coherent modes for an optimal resolution. We show by a wave optical simulation that the intensity of a nearly diffraction-limited focusing X-ray beam can be described as an incoherent sum of a few orthogonal modes and that the first-mode flux significantly increases within a secondary source size by relaxing the requirement on the degree of coherence. We experimentally demonstrate it by means of multiple-mode ptychography with a synchrotron X-ray and achieve the high-resolution imaging of a weak-phase object. The present approach enables the high-resolution and high-throughput observation of weak-phase objects in materials science and biology.
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- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1063/1.4942105
- https://aip.scitation.org/doi/pdf/10.1063/1.4942105
- OA Status
- hybrid
- Cited By
- 7
- References
- 22
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W2281101742