Ultrafast electron diffraction: Visualizing dynamic states of matter

D Filippetto, P Musumeci, RK Li, BJ Siwick… - Reviews of modern …, 2022 - APS
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 …

[HTML][HTML] Matter manipulation with extreme terahertz light: Progress in the enabling THz technology

P Salén, M Basini, S Bonetti, J Hebling, M Krasilnikov… - Physics reports, 2019 - Elsevier
Terahertz (THz) light has proven to be a fine tool to probe and control quasi-particles and
collective excitations in solids, to drive phase transitions and associated changes in material …

Breaking 50 femtosecond resolution barrier in MeV ultrafast electron diffraction with a double bend achromat compressor

F Qi, Z Ma, L Zhao, Y Cheng, W Jiang, C Lu, T Jiang… - Physical review …, 2020 - APS
We propose and demonstrate a novel scheme to produce ultrashort and ultrastable MeV
electron beam. In this scheme, the electron beam produced in a photocathode radio …

High gradient terahertz-driven ultrafast photogun

J Ying, X He, D Su, L Zheng, T Kroh, T Rohwer… - Nature …, 2024 - nature.com
Terahertz (THz)-based electron acceleration has potential as a technology for next-
generation cost-efficient compact electron sources. Although proof-of-principle …

[HTML][HTML] Experimental demonstration of externally driven millimeter-wave particle accelerator structure

MAK Othman, J Picard, S Schaub… - Applied Physics …, 2020 - pubs.aip.org
We report the experimental demonstration of a mm-wave electron accelerating structure
powered by a high-power rf source. We demonstrate reliable coupling of an unprecedented …

Multi-objective Bayesian active learning for MeV-ultrafast electron diffraction

F Ji, A Edelen, R Roussel, X Shen, S Miskovich… - Nature …, 2024 - nature.com
Ultrafast electron diffraction using MeV energy beams (MeV-UED) has enabled
unprecedented scientific opportunities in the study of ultrafast structural dynamics in a …

Femtosecond compression dynamics and timing jitter suppression in a THz-driven electron bunch compressor

EC Snively, MAK Othman, M Kozina, BK Ofori-Okai… - Physical review …, 2020 - APS
We present the first demonstration of THz driven bunch compression and timing stabilization
of a relativistic electron beam. Quasi-single-cycle strong field THz radiation is used in a …

Towards jitter-free ultrafast electron diffraction technology

HW Kim, NA Vinokurov, IH Baek, KY Oang, MH Kim… - Nature …, 2020 - nature.com
Stroboscopic visualization of nuclear or electron dynamics in atoms, molecules or solids
requires ultrafast pump and probe pulses and a close to perfect synchronization between …

High-purity free-electron momentum states prepared by three-dimensional optical phase modulation

A Feist, SV Yalunin, S Schäfer, C Ropers - Physical Review Research, 2020 - APS
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 …

Femtosecond relativistic electron beam with reduced timing jitter from THz driven beam compression

L Zhao, H Tang, C Lu, T Jiang, P Zhu, L Hu, W Song… - Physical review …, 2020 - APS
We propose and demonstrate a method to reduce the pulse width and timing jitter of a
relativistic electron beam through THz driven beam compression. In this method the …