Phase plates in the transmission electron microscope: operating principles and applications

M Malac, S Hettler, M Hayashida, E Kano… - …, 2021 - academic.oup.com
In this paper, we review the current state of phase plate imaging in a transmission electron
microscope. We focus especially on the hole-free phase plate design, also referred to as the …

Charging of carbon thin films in scanning and phase-plate transmission electron microscopy

S Hettler, E Kano, M Dries, D Gerthsen, L Pfaffmann… - Ultramicroscopy, 2018 - Elsevier
A systematic study on charging of carbon thin films under intense electron-beam irradiation
was performed in a transmission electron microscope to identify the underlying physics for …

Temporal dynamics of charge buildup in cryo-electron microscopy

MT Schreiber, A Maigné, M Beleggia, S Shibata… - Journal of Structural …, 2023 - Elsevier
It is well known that insulating samples can accumulate electric charges from exposure to an
electron beam. How the accumulation of charge affects imaging parameters and sample …

[HTML][HTML] Electron-beam-induced charging of an Al2O3 nanotip studied using off-axis electron holography

F Zheng, M Beleggia, V Migunov, G Pozzi… - Ultramicroscopy, 2022 - Elsevier
Electrostatic charging of specimens during electron, photon or ion irradiation is a
complicated and poorly understood phenomenon, which can affect the acquisition and …

[HTML][HTML] Charging of electron beam irradiated amorphous carbon thin films at liquid nitrogen temperature

S Hettler, J Onoda, R Wolkow, J Pitters, M Malac - Ultramicroscopy, 2019 - Elsevier
We studied the charging behavior of an amorphous carbon thin film kept at liquid-nitrogen
temperature under focused electron-beam irradiation. Negative charging of the thin film is …

Magnetic textures in a hexaferrite thin film and their response to magnetic fields revealed by phase microscopy

A Kotani, K Harada, M Malac, H Nakajima… - Japanese Journal of …, 2019 - iopscience.iop.org
We investigated magnetic textures in a Sc-doped hexaferrite film by means of phase
microscopy with a hole-free phase plate in a transmission electron microscope. In a zero …

Investigation of hole-free phase plate performance in transmission electron microscopy under different operation conditions by experiments and simulations

R Pretzsch, M Dries, S Hettler, M Spiecker… - Advanced Structural and …, 2019 - Springer
Hole-free phase plates (HFPPs), also known as Volta phase plates, were already
demonstrated to be well suited for in-focus transmission electron microscopy imaging of …

Enhancement of low-spatial-frequency components by a new phase-contrast STEM using a probe formed with an amplitude Fresnel zone plate

M Tomita, Y Nagatani, K Murata, A Momose - Ultramicroscopy, 2020 - Elsevier
Electron microscopy is a powerful tool for visualizing the shapes of sub-nanometer objects.
However, Contrast Transfer Function (CTF) principally restricts lower frequency components …

[HTML][HTML] Aberration-corrected transmission electron microscopy with Zernike phase plates

S Hettler, R Arenal - Ultramicroscopy, 2022 - Elsevier
We explore the possibility of applying physical phase plates (PPs) in combination with
aberration-corrected transmission electron microscopy. Phase-contrast transfer …

Comparative image simulations for phase-plate transmission electron microscopy

S Hettler, R Arenal - Ultramicroscopy, 2021 - Elsevier
Numerous physical phase plates (PP) for phase-contrast enhancement in transmission
electron microscopy (TEM) have been proposed and studied with the hole-free or Volta PP …