activity
20162026
most citedAttosecond interferometry with self-amplified spontaneous emission of a free-electron laser

44 citations · 134 across the 17 of their papers we have counts for

collaborators

18 papers

physics.chem-ph2026

X-ray Driven Trihydrogen Formation on Silica Nanosurfaces

Samuel Sahel-Schackis, Adam Summers, Ritika Dagar +29

The trihydrogen cation () initiates the ion-molecule reactions that build molecular complexity in interstellar space. Whether its canonical formation reaction, $\ma…

physics.chem-ph2026

Photoinduced enhancement of chemical shift sensitivity to local vibrations

Ana Martínez Gutiérrez, Oliver Alexander, Pablo Estévez Alonso +26

The advent of novel free-electron laser sources enabling time-resolved x-ray photoelectron spectroscopy (tr-XPS) provides a unique opportunity to monitor local chemical environment…

physics.chem-ph2026

Probing the structure of cyclic hydrocarbon molecules with X-ray-induced Coulomb explosion imaging

Kurtis D. Borne, Rebecca Boll, Thomas M. Baumann +27

Coulomb explosion imaging (CEI) is a powerful experimental technique that maps a molecule's geometric structure onto the momenta of ionic molecular fragments produced by rapid mult…

physics.chem-ph2025★ 1 cited

Unraveling real-time chemical shifts in the ultrafast regime

Daniel E. Rivas, Lorenzo Paoloni, Rebecca Boll +21

Traditional x-ray photoelectron spectroscopy (XPS) relies upon a direct mapping between the photoelectron binding energies and the local chemical environment, which is well-charact…

physics.atom-ph2025★ 1 cited

Enhanced One-Color-Two-Photon Resonant Ionization in Highly Charged Ions by Fine-Structure Effects

Moto Togawa, Chunhai Lyu, Chintan Shah +25

Ultraintense pulses from X-ray free-electron lasers can drive, within femtoseconds, multiple processes in the inner shells of atoms and molecules in all phases of matter. The ensui…

physics.optics2025

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 +28

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★ 10 cited

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

Davide Faccialà, 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.optics2024★ 2 cited

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.optics2024★ 3 cited

Attosecond soft X-ray pulses generated by chirp-dispersed manipulation in an XFEL reveal nonlinear core-electron dynamics in neon

Lars Funke, Markus Ilchen, Svitozar Serkez +59

Free-electron lasers have demonstrated their capability of generating intense attosecond X-ray pulses, which are the key to studying electron dynamics at their natural time scale a…

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…

physics.chem-ph2024

Controlled molecule injector for cold, dense, and pure molecular beams at the European x-ray free-electron laser

Lanhai He, Melby Johny, Thomas Kierspel +27

A permanently available molecular-beam injection setup for controlled molecules (COMO) was installed and commissioned at the small quantum systems (SQS) instrument at the European…

physics.atom-ph2023

Multiple-core-hole resonance spectroscopy with ultraintense X-ray pulses

Aljoscha Rörig, Sang-Kil Son, Tommaso Mazza +14

Understanding the interaction of intense, femtosecond X-ray pulses with heavy atoms is crucial for gaining insights into the structure and dynamics of matter. One key aspect of non…

physics.atom-ph2021★ 21 cited

Resonance-enhanced multiphoton ionization in the x-ray regime

Aaron C. LaForge, Sang-Kil Son, Debadarshini Mishra +16

Here, we report on the nonlinear ionization of argon atoms in the short wavelength regime using ultraintense x rays from the European XFEL. After sequential multiphoton ionization,…

physics.chem-ph2020★ 38 cited

Electronic Quantum Coherence in Glycine Molecules Probed with Ultrashort X-ray Pulses in Real Time

David Schwickert, Marco Ruberti, Přemys Kolorenč +25

Quantum coherence between electronic states of a photoionized molecule and the resulting process of ultrafast electron-hole migration have been put forward as a possible quantum me…

physics.optics2017★ 44 cited

Attosecond interferometry with self-amplified spontaneous emission of a free-electron laser

Sergey Usenko, Andreas Przystawik, Markus Jakob +6

Light-phase-sensitive techniques, such as coherent multidimensional spectroscopy, are well-established in a broad spectral range, already spanning from radio-frequencies in nuclear…

stat.AP2016★ 14 cited

Variance component score test for time-course gene set analysis of longitudinal RNA-seq data

Denis Agniel, Boris P Hejblum

As gene expression measurement technology is shifting from microarrays to sequencing, the statistical tools available for their analysis must be adapted since RNA-seq data are meas…