activity
20242026
collaborators

7 papers

physics.optics2026

Dichography: Two-frame Ultrafast Imaging from a Single Diffraction Pattern

Linos Hecht, Andre Al Haddad, Björn Bastian +47

We experimentally demonstrate that pairs of time-delayed ultrabright and ultrashort X-ray pulses of two different colors, delivered by modern X-ray Free Electron Lasers, can provid…

physics.optics2025

Model-free pattern separation of two-color ultrafast X-ray diffraction

Linos Hecht, Yevheniy Ovcharenko, Asbjørn Ø. Lægdsmand +33

Two-color X-ray imaging with Free Electron Laser pulses offers a powerful approach for probing ultrafast structural dynamics in nanoscale systems, combining (near-)atomic spatial r…

physics.chem-ph2025

Unraveling the relaxation dynamics of Uracil: insights from time-resolved X-ray photoelectron spectroscopy

Davide FaccialÃ, Matteo Bonanomi, Bruno Nunes Cabral Tenorio +26

We report a study of the electronic and nuclear relaxation dynamics of the photoexcited RNA base uracil in the gas phase, using time-resolved core level photoelectron spectroscopy…

physics.optics2025

SPRING: an effective and reliable framework for image reconstruction in single-particle Coherent Diffraction Imaging

Alessandro Colombo, Mario Sauppe, Andre Al Haddad +40

Coherent Diffraction Imaging (CDI) is an experimental technique to gain images of isolated structures by recording the light scattered off the sample. In principle, the sample dens…

physics.atom-ph2024

Transmission spectroscopy of CF molecules in intense x-ray fields

Rui Jin, Adam Fouda, Alexander Magunia +19

The nonlinear interaction of x-rays with matter is at the heart of understanding and controlling ultrafast molecular dynamics from an atom-specific viewpoint, providing new scienti…

physics.chem-ph2024

X-ray Coulomb explosion imaging reveals role of molecular structure in internal conversion

Till Jahnke, Sebastian Mai, Surjendu Bhattacharyya +26

Molecular photoabsorption results in an electronic excitation/ionization which couples to the rearrangement of the nuclei. The resulting intertwined change of nuclear and electroni…