THz SASE FEL at PITZ: lasing at a wavelength of 100 μm

M Krasilnikov, Z Aboulbanine, G Adhikari… - Journal of Physics …, 2024 - iopscience.iop.org
Abstract Development of an accelerator-based tunable THz source prototype for pump-
probe experiments at the European XFEL is ongoing at the Photo Injector Test facility at …

Capturing ultrafast magnetization phenomenon using femtosecond x rays

S Jeppson, R Kukreja - APL Materials, 2021 - pubs.aip.org
Recent advances in x-ray and extreme ultraviolet sources have enabled a new frontier for
ultrafast studies of magnetic materials. Modern x-ray free electron lasers and high-harmonic …

Intense narrowband terahertz pulses produced by obliquely colliding laser pulses in helium gas

J Lee, HS Song, D Park, M Kumar, B Ersfeld… - Physics of …, 2023 - pubs.aip.org
A practical configuration for generating narrowband terahertz (THz) pulses based on plasma
dipole oscillations (PDOs) is studied using two-dimensional particle-in-cell simulations. In …

A strong-field THz light source based on coherent transition radiation

Y Kang, R Wang, W Chen, L Tu, K Zhang… - Frontiers in …, 2023 - frontiersin.org
Terahertz (THz) radiation is a powerful tool for exploring various scientific frontiers through
THz pump–probe experiments. However, different experiments may require THz radiation …

Non-Resonant Magnetic X-ray Scattering as a Probe of Ultrafast Molecular Spin-State Dynamics: An Ab Initio Theory

X Mi, M Zhang, L Zhao, Z Liang, R Peng… - Journal of Chemical …, 2025 - ACS Publications
With the advancement of high harmonic generation and X-ray free-electron lasers (XFELs)
to the attosecond domain, the studies of the ultrafast electron and spin dynamics became …

Generating high-power, frequency tunable coherent THz pulse in an X-ray free-electron laser for THz pump and X-ray probe experiments

Y Kang, Z Wang, K Zhang, C Feng - Photonics, 2023 - mdpi.com
Precisely synchronized X-ray and strong-field coherent terahertz (THz) enable the coherent
THz excitation of many fundamental modes (THz pump) and the capturing of X-ray dynamic …

Synchronised TeraHertz Radiation and Soft X-rays Produced in a FEL Oscillator

V Petrillo, A Bacci, I Drebot, M Opromolla, AR Rossi… - Applied Sciences, 2022 - mdpi.com
We present a scheme to generate synchronised THz and soft X-ray radiation pulses by
using a free-electron laser oscillator driven by a high repetition rate (of order 10–100 MHz) …

Ultrafast quantum dynamics driven by the strong space-charge field of a relativistic electron beam

D Cesar, A Acharya, JP Cryan, A Kartsev, MF Kling… - Optica, 2022 - opg.optica.org
In this paper,<? TeX 1.5 pc 0pt?> we<? TeX 4pc 0pt?> illustrate how the Coulomb field of a
highly relativistic electron beam can be shaped into a broadband pulse suitable for driving …

A compact accelerator-based light source for high-power, full-bandwidth tunable coherent THz generation

K Zhang, Y Kang, T Liu, Z Wang, C Feng, W Fang… - Applied Sciences, 2021 - mdpi.com
Featured Application This work can be used to generate coherent THz radiation with tunable
frequency and pulse energy to satisfy various requirements of different scientific frontiers …

Field analysis for a highly overmoded iris line with application to THz radiation transport

A Naji, G Stupakov, Z Huang, K Bane - Physical Review Accelerators and …, 2022 - APS
Vector field analysis is presented for a highly overmoded iris-line structure that can act as a
medium of transportation for THz radiation. The axisymmetric structure is capable of …