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 …

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 …

We present the development of the first ultrafast transmission electron microscope (UTEM)
driven by localized photoemission from a field emitter cathode. We describe the …

Metal catalysts are of great importance in the modern chemical industry. It is well-known that
the structures of metal catalysts determine their properties. However, recent studies …

The conversion of electric power to light is an important scientific and technological
challenge. Advanced experimental methods have provided access to explore the relevant …

In the field of beam physics, two frontier topics have taken center stage due to their potential
to enable new approaches to discovery in a wide swath of science. These areas are …

Ultralow emittance (≤ 20 nm, normalized) electron beams with 1 0 5 electrons per bunch
are obtained by tightly focusing an ultrafast (∼ 100 fs) laser pulse on the cathode of a 1.6 …

In this paper, we review the status of bright electron sources. High peak current (up to kA)
low emittance (< 1 mm rad) electron beams have been one of the critical components in the …

Despite the development of a myriad of mitigation methods, radiation damage continues to
be a major limiting factor in transmission electron microscopy. Intriguing results have been …

In this Perspective, we provide an overview of the field of ultrafast electron microscopy
(UEM). We begin by briefly discussing the emergence of methods for probing ultrafast …