Since the discovery of electron-wave duality, electron scattering instrumentation has
developed into a powerful array of techniques for revealing the atomic structure of matter …

One of the great dream experiments in Science is to directly observe atomic motions as they
occur. Femtosecond electron diffraction provided the first'light'of sufficient intensity to …

With the recent advances in ultrabright electron and x-ray sources, it is now possible to
extend crystallography to the femtosecond time domain to literally light up atomic motions …

▪ Abstract In this review, we highlight the progress made in the development of 4D ultrafast
electron diffraction (UED), crystallography (UEC), and microscopy (UEM) with a focus on …

The use of pump-probe experiments to study complex transient events has been an area of
significant interest in materials science, biology, and chemistry. While the emphasis has …

One of the grand challenges in chemistry has been to directly observe atomic motions
during chemical processes. The depiction of the nuclear configurations in space-time to …

With the advent of femtosecond (fs) time resolution in spectroscopic experiments, it is now
possible to study the evolution of nuclear motions in chemical and photobiochemical …

With properly timed sequences of ultrafast electron pulses, it is now possible to image
complex molecular structures in the four dimensions of space and time with resolutions of …

A rf photocathode electron gun is used as an electron source for ultrafast time-resolved
pump-probe electron diffraction. The authors observed single-shot diffraction patterns from a …

Femtosecond electron diffraction (FED) has the potential to directly observe transition state
processes. The relevant motions for this barrier-crossing event occur on the hundred …