Time-resolved transmission electron microscopy for nanoscale chemical dynamics

FM Alcorn, PK Jain, RM van der Veen - Nature Reviews Chemistry, 2023 - nature.com
The ability of transmission electron microscopy (TEM) to image a structure ranging from
millimetres to Ångströms has made it an indispensable component of the toolkit of modern …

[HTML][HTML] Ultrafast transmission electron microscopy using a laser-driven field emitter: Femtosecond resolution with a high coherence electron beam

A Feist, N Bach, NR da Silva, T Danz, M Möller… - Ultramicroscopy, 2017 - Elsevier
We present the development of the first ultrafast transmission electron microscope (UTEM)
driven by localized photoemission from a field emitter cathode. We describe the …

Four-dimensional ultrafast electron microscopy: Insights into an emerging technique

A Adhikari, JK Eliason, J Sun, R Bose… - … applied materials & …, 2017 - ACS Publications
Four-dimensional ultrafast electron microscopy (4D-UEM) is a novel analytical technique
that aims to fulfill the long-held dream of researchers to investigate materials at extremely …

[HTML][HTML] Low repetition-rate, high-resolution femtosecond transmission electron microscopy

DJ Flannigan, WA Curtis, EJ VandenBussche… - The Journal of …, 2022 - pubs.aip.org
The spatial and energy resolutions of state-of-the-art transmission electron microscopes
(TEMs) have surpassed 50 pm and 5 meV. However, with respect to the time domain, even …

Femtosecond-resolved imaging of a single-particle phase transition in energy-filtered ultrafast electron microscopy

YJ Kim, HW Nho, S Ji, H Lee, H Ko, J Weissenrieder… - Science …, 2023 - science.org
Using an energy filter in transmission electron microscopy has enabled elemental map**
at the atomic scale and improved the precision of structural determination by gating inelastic …

Development of analytical ultrafast transmission electron microscopy based on laser-driven Schottky field emission

C Zhu, D Zheng, H Wang, M Zhang, Z Li, S Sun, P Xu… - Ultramicroscopy, 2020 - Elsevier
A new design scheme for ultrafast transmission electron microscopy (UTEM) has been
developed based on a Schottky-type field emission gun (FEG) at the Institute of Physics …

[HTML][HTML] Nanoscale diffractive probing of strain dynamics in ultrafast transmission electron microscopy

A Feist, N Rubiano da Silva, W Liang, C Ropers… - Structural …, 2018 - pubs.aip.org
The control of optically driven high-frequency strain waves in nanostructured systems is an
essential ingredient for the further development of nanophononics. However, broadly …

Ultrafast electron microscopy: Instrument response from the single-electron to high bunch-charge regimes

DA Plemmons, DJ Flannigan - Chemical Physics Letters, 2017 - Elsevier
We determine the instrument response of an ultrafast electron microscope equipped with a
conventional thermionic electron gun and absent modifications beyond the optical ports …

Photo‐thermal switching of individual plasmonically activated spin crossover nanoparticle imaged by ultrafast transmission electron microscopy

Y Hu, M Picher, NM Tran, M Palluel… - Advanced …, 2021 - Wiley Online Library
Spin crossover (SCO) is a promising switching phenomenon when implemented in
electronic devices as molecules, thin films or nanoparticles. Among the properties …

[HTML][HTML] Coulomb interactions in high-coherence femtosecond electron pulses from tip emitters

N Bach, T Domröse, A Feist, T Rittmann… - Structural …, 2019 - pubs.aip.org
Tip-based photoemission electron sources offer unique properties for ultrafast imaging,
diffraction, and spectroscopy experiments with highly coherent few-electron pulses …