Results 1 to 10 of about 1,452 (172)
Gap‐Free Information Transfer in 4D‐STEM via Fusion of Complementary Scattering Channels [PDF]
Advanced ScienceLinear phase‐contrast scanning transmission electron microscopy (STEM) techniques compatible with high‐throughput 4D‐STEM acquisition are widely used to enhance phase contrast in weakly scattering and beam‐sensitive materials.
Shengbo You +15 more
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Sparse-Scan Ptychography with Hybrid-Overlap Scanning and Reference-Guided Probe Updates [PDF]
SensorsSparse-scan ptychography accelerates data acquisition but compromises the overlap-induced redundancy essential for stable blind reconstruction. In low-overlap cases, object errors are often transferred to the probe update, causing crosstalk and artifacts.
Sheng Chen +4 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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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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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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A beam-direction cross-vessel metrology method and error analysis for the ptychography setup at HEPS ID09 [PDF]
Journal of Synchrotron RadiationA metrology method dedicated to position monitoring and correction for the ptychography setup at the High Energy Photon Source (HEPS, Beijing, China) beamline ID09 is proposed.
Ruiying Liao +10 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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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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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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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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