Light–matter interactions at the nanoscale are fundamental to the rapidly developing fields
of plasmonics and nanophotonics. These fields hold the promise of advancing both the …

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 …

Ultrafast electron microscopy (UEM) is a pivotal tool for imaging of nanoscale structural
dynamics with subparticle resolution on the time scale of atomic motion. Photon-induced …

The transmission electron microscope (TEM) is a powerful tool enabling the visualization of
atoms with length scales smaller than the Bohr radius at a factor of only 20 larger than the …

Experimental methods for ultrafast microscopy are advancing rapidly. Promising methods
combine ultrafast laser excitation with electron-based imaging or rely on super-resolution …

In this Perspective, the evolutionary and revolutionary developments of ultrafast electron
imaging are overviewed with focus on the “single-electron concept” for probing …

Light-driven electronic motion unfolds on times as short as the cycle period of light and on
length scales as small as the distance between two neighboring atoms in a molecule …

Integrating femtosecond lasers with electron microscopies has enabled direct imaging of
transient structures and morphologies of materials in real time and space. Here, we report …

Femtosecond electron microscopy produces real-space images of matter in a series of
ultrafast snapshots. Pulses of electrons self-disperse under space-charge broadening, so …

In the past decade, we have witnessed the rapid growth of the field of ultrafast electron
microscopy (UEM), which provides intuitive means to watch atomic and molecular motions of …