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Development of electron ptychography from algorithms, detectors to its applications [PDF]
Applied MicroscopyElectron ptychography has emerged as a powerful computational imaging technique using four-dimensional scanning transmission electron microscopy, greatly exceeding the resolution limits of conventional electron microscopes by quantitative phase retrieval.
Wonwoo Suh +3 more
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Journal of Synchrotron Radiation, 2023 Spectro-ptychography offers improved spatial resolution and additional phase spectral information relative to that provided by scanning transmission X-ray microscopes.
Jaianth Vijayakumar +2 more
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Ultra-broadband ptychography for dispersive samples [PDF]
Nature CommunicationsX-ray ptychography has emerged as a powerful imaging tool on X-ray synchrotron facilities. Implementation of ptychography on laboratory-scale X-ray sources has largely been hindered by their poor temporal coherence and low flux.
Huixiang Lin +9 more
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Multi-beam multi-slice X-ray ptychography [PDF]
Scientific ReportsX-ray ptychography provides the highest resolution non-destructive imaging at synchrotron radiation facilities, and the efficiency of this method is crucial for coping with limited experimental time.
Mattias Åstrand +6 more
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X-ray near-field multi-slice ptychography for in-situ imaging [PDF]
Scientific ReportsIn-situ imaging of chemical reactions can provide valuable insight into nanoparticle growth and structural evolution. Hard X-ray imaging is an excellent tool for this purpose, as it combines high spatial resolution with high penetration depth, allowing ...
Sina Röper +13 more
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Atomically resolved imaging of radiation-sensitive metal-organic frameworks via electron ptychography [PDF]
Nature CommunicationsElectron ptychography, recognized as an ideal technique for low-dose imaging, consistently achieves deep sub-angstrom resolution at electron doses of several thousand electrons per square angstrom (e−/Å2) or higher.
Guanxing Li +12 more
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Enhanced Imaging in Scanning Transmission X-Ray Microscopy Assisted by Ptychography [PDF]
NanomaterialsScanning transmission X-ray microscopy (STXM) is a direct imaging technique with nanoscale resolution. But its resolution is limited by the spot size on the sample, i.e., by the manufacturing technique of the focusing element.
Shuhan Wu +7 more
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A modular software framework for the design and implementation of ptychography algorithms [PDF]
PeerJ Computer Science, 2022 Computational methods are driving high impact microscopy techniques such as ptychography. However, the design and implementation of new algorithms is often a laborious process, as many parts of the code are written in close-to-the-hardware programming ...
Francesco Guzzi +5 more
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Periodic Artifacts Generation and Suppression in X-ray Ptychography
Photonics, 2023 As a unique coherent diffraction imaging method, X-ray ptychography has an ultrahigh resolution of several nanometers for extended samples. However, ptychography is often degraded by various noises that are mixed with diffracted signals on the detector ...
Shilei Liu +7 more
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High-speed free-run ptychography at the Australian Synchrotron
Journal of Synchrotron Radiation, 2022 Over the last decade ptychography has progressed rapidly from a specialist ultramicroscopy technique into a mature method accessible to non-expert users.
Michael W. M. Jones +8 more
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