Results 81 to 90 of about 3,149 (205)

Experimental Demonstration of Time-Resolved Imaging by Multiplexed Ptychography (TIMP)

open access: yes, 2019
A recently proposed technique introduced a time-resolved option of fast transient non-repetitive events to ptychographic microscopy. This technique, termed time-resolved imaging by multiplexed ptychography (TIMP), is based on algorithmic reconstruction ...
Peleg, Or   +14 more
core   +1 more source

Critical point drying of brain tissue for X‐ray phase‐contrast imaging

open access: yesJournal of Synchrotron Radiation, Volume 33, Issue 3, Page 759-768, May 2026.
X‐ray phase contrast tomography can efficiently image brain tissue at subcellular resolution. Critical point drying allows a gentle replacement of interstitial material by air, enhancing X‐ray phase contrast of the ultrastructural features.X‐ray phase‐contrast tomography can efficiently image brain tissue at subcellular resolution.
Safe Khan   +15 more
wiley   +1 more source

Ptychography of pure quantum states [PDF]

open access: yesScientific Reports, 2019
AbstractPtychography is an imaging technique in which a localized illumination scans overlapping regions of an object and generates a set of diffraction intensities used to computationally reconstruct its complex-valued transmission function. We propose a quantum analogue of this technique designed to reconstruct d-dimensional pure states.
Fernandes, Mário Foganholi   +1 more
openaire   +3 more sources

Large Field of View Electron Ptychography [PDF]

open access: yes, 2017
Electron ptychography can overcome the limits of the conventional electron microscopy in terms of both resolution and phase quantitative measurements. There are two ways to implement ptychography with electrons.
Cao, Shaohong
core  

Live scanning ptychography with the LiberTEM software framework

open access: yes, 2021
Live 4D STEM data processing and plotting • Any combination of user-defined functions • Wide range of algorithms possible: Virtual detectors, differential phase contrast, ptychography, strain and orientation mapping, … • Both CPU and GPU • Example: Live ...
Achim Strauch   +5 more
core   +1 more source

Imaging Correlography Using Ptychography

open access: yesApplied Sciences, 2019
Imaging correlography, an effective method for long-distance imaging, recovers an object using only the knowledge of the Fourier modulus, without needing phase information. It is not sensitive to atmospheric turbulence or optical imperfections.
Zhixin Li   +6 more
doaj   +1 more source

ProSPyX: software for post-processing images of X-ray ptychography with spectral capabilities

open access: yesJournal of Synchrotron Radiation
X-ray ptychography is a coherent diffraction imaging technique based on acquiring multiple diffraction patterns obtained through the illumination of the sample at different partially overlapping probe positions.
Redhouane Boudjehem   +7 more
doaj   +1 more source

Sparsely sampled Fourier ptychography

open access: yesOptics Express, 2014
Fourier ptychography (FP) is an imaging technique that applies angular diversity functions for high-resolution complex image recovery. The FP recovery routine switches between two working domains: the spectral and spatial domains. In this paper, we investigate the spectral-spatial data redundancy requirement of the FP recovery process.
Siyuan, Dong   +3 more
openaire   +2 more sources

4D-STEM Ptychography for Electron-Beam-Sensitive Materials

open access: yes, 2022
[Image: see text] Recent advances in high-speed pixelated electron detectors have substantially facilitated the implementation of four-dimensional scanning transmission electron microscopy (4D-STEM).
Zhang, Hui   +5 more
core   +1 more source

Ptycho-LDM: A Hybrid Framework for Efficient Phase Retrieval of EUV Photomasks Using Conditional Latent Diffusion Models

open access: yesPhotonics
Extreme ultraviolet (EUV) photomask inspection is a critical step in semiconductor manufacturing, requiring high-resolution, high-throughput solutions to detect nanometer-scale defects. Traditional actinic imaging systems relying on complex optics have a
Suman Saha   +4 more
doaj   +1 more source

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