X-ray free-electron lasers (XFELs) enable crystallographic structure determination beyond
the limitations imposed upon synchrotron measurements by radiation damage. The need for …

We report the observation and analysis of the gain curve of amplified K α x-ray emission
from solutions of Mn (II) and Mn (VII) complexes using an x-ray free electron laser to create …

X-ray free-electron lasers (XFELs) have brought new ways to probe and manipulate atomic
and molecular dynamics with unprecedented spatial and temporal resolutions. A …

K β x-ray emission spectroscopy is a powerful probe for electronic structure analysis of 3 d
transition metal systems and their ultrafast dynamics. Selectively enhancing specific spectral …

An accurate description of the interaction of intense hard X-ray pulses with heavy atoms,
which is crucial for many applications of free-electron lasers, represents a hitherto …

Femtosecond pump-probe spectroscopy using ultrafast optical and infrared pulses has
become an essential tool to discover and understand complex electronic and structural …

In the warm dense matter (WDM) regime, where condensed, gas, and plasma phases
coexist, matter frequently exhibits unusual properties that cannot be described by …

The xcalib toolkit has been developed to calibrate the beam profile of an X-ray free-electron
laser (XFEL) at the focal spot based on the experimental charge state distributions (CSDs) of …

The advancements in bright and coherent X-ray free-electron lasers (XFEL) have in the last
decade revolutionized diverse fields of study, leading to an ever-increasing demand in more …

Methods of ablation imprints in solid targets are widely used to characterize focused X-ray
laser beams due to a remarkable dynamic range and resolving power. A detailed …