Recent progress in utilizing ultrafast light-matter interaction to control the macroscopic
properties of quantum materials is reviewed. Particular emphasis is placed on photoinduced …

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 …

Organic π‐conjugated crystals with second‐order optical nonlinearity are considerably
attractive materials for diverse terahertz (THz) wave photonics. An overview of the research …

Terahertz (THz)-based electron acceleration has potential as a technology for next-
generation cost-efficient compact electron sources. Although proof-of-principle …

Advances in attosecond spectroscopy have enabled tracing and controlling the electron
motion dynamics in matter, although they have yielded insufficient information about the …

Ultrafast electron diffraction using MeV energy beams (MeV-UED) has enabled
unprecedented scientific opportunities in the study of ultrafast structural dynamics in a …

We demonstrate the quantized transfer of photon energy and transverse momentum to a
high-coherence electron beam. In an ultrafast transmission electron microscope, a three …

The structure of molecules, particularly the dynamic changes in structure, plays an essential
role in understanding physical and chemical phenomena. Time-resolved (TR) scattering …

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 …

Advances in FEL technologies have contributed remarkably to various scientific fields over
the past decade, and ultrafast molecular dynamics is no exception. The ability to probe …