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A Ray Tracing Model for Electron Optical Imaging in Electron Beam Powder Bed Fusion

open access: yesJournal of Manufacturing and Materials Processing, 2023
The recent success of the process monitoring method Electron Optical Imaging, applied in the additive manufacturing process Electron Beam Powder Bed Fusion, necessitates a clear understanding of the underlying image formation process.
Jakob Renner   +3 more
doaj   +3 more sources

Mitigation of artifacts in imaging biosamples with optical scanning transmission electron microscopy [PDF]

open access: yesApplied Microscopy
Electron microscopy (EM) allows ultrastructural analysis of biological tissues and cells, but images frequently contain artifacts because biological samples have to undergo rigorous preparation to be resistant to vacuum conditions and electron beam ...
Arent J. Kievits   +4 more
doaj   +2 more sources

Challenging Point Scanning across Electron Microscopy and Optical Imaging using Computational Imaging

open access: yesIntelligent Computing, 2022
Solving challenges of enhanced imaging (resolution or speed) is a continuously changing frontier of research. Within this sphere, ghost imaging (and the closely related single-pixel imaging) has evolved as an alternative to focal plane detector arrays ...
Akhil Kallepalli   +12 more
doaj   +1 more source

All-Optical Three-Dimensional Electron Momentum Imaging

open access: yesThe Journal of Physical Chemistry A, 2021
We report a new implementation of three-dimensional (3D) momentum imaging for electrons, employing a two-dimensional (2D) imaging detector and a silicon photomultiplier tube (siPMT). To achieve the necessary time resolution for 3D electron imaging, a poly(p-phenylene)-dye-based fast scintillator (Exalite 404) was used in the imaging detector instead of
Orunesajo, E   +7 more
openaire   +2 more sources

Probing electron and lattice dynamics by ultrafast electron microscopy: Principles and applications

open access: yesInternational Journal of Mechanical System Dynamics, 2023
Microscale charge and energy transfer is an ultrafast process that can determine the photoelectrochemical performance of devices. However, nonlinear and nonequilibrium properties hinder our understanding of ultrafast processes; thus, the direct imaging ...
Yiling Lian, Jingya Sun, Lan Jiang
doaj   +1 more source

Lorentz microscopy of optical fields

open access: yesNature Communications, 2023
In electron microscopy, detailed insights into nanoscale optical properties of materials are gained by spontaneous inelastic scattering leading to electron-energy loss and cathodoluminescence.
John H. Gaida   +7 more
doaj   +1 more source

Microscopy and diffraction with attosecond electron pulse trains [PDF]

open access: yesEPJ Web of Conferences, 2019
Attosecond imaging with electron beams can access optical-field-driven electron dynamics in space and time. Here we report first diffraction and microscopy experiments with attosecond electron pulses.
Morimoto Yuya, Baum Peter
doaj   +1 more source

Single probes and resonant four-wave-mixing enabling novel correlative light electron microscopy workflow

open access: yesLight: Science & Applications, 2023
Correlative light electron microscopy prefers single probes with stable performance in both optical and electron microscopy. Now researchers have shown how to harness gold nanoparticles featuring exceptional photostability and four-wave-mixing ...
Long Chen, Chao He
doaj   +1 more source

Correlative confocal and scanning electron microscopy of cultured cells without using dedicated equipment

open access: yesSTAR Protocols, 2021
Summary: This protocol enables correlative light and electron microscopy (CLEM) imaging of cell surface features without using dedicated equipment. Cells are cultured and fixed on transparent substrates for confocal microscopy imaging.
Javier Casares-Arias   +3 more
doaj   +1 more source

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