71 citations · 478 across the 16 of their papers we have counts for
17 papers
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…
Single-shot MHz velocity-map-imaging using two Timepix3 cameras
Hubertus Bromberger, Christopher Passow, David Pennicard +10
We demonstrate the application of event-driven Timepix3-based detectors in combination with a double-sided velocity-map-imaging spectrometer to record the full 3D momentum of charg…
Water is a radiation protection agent for ionised pyrrole
Melby Johny, Constant A. Schouder, Ahmed Al-Refaie +5
Radiation-induced damage of biological matter is an ubiquitous problem in nature. The influence of the hydration environment is widely discussed, but its exact role remains elusive…
Picosecond pulse-shaping for strong three-dimensional field-free alignment of generic asymmetric-top molecules
Terry Mullins, Evangelos Thomas Karamatskos, Joss Wiese +5
Fixing molecules in space is a crucial step for the imaging of molecular structure and dynamics. Here, we demonstrate three-dimensional (3D) field-free alignment of the prototypica…
Strong-field ionization of complex molecules
Joss Wiese, Jolijn Onvlee, Sebastian Trippel +1
Strong-field photoelectron momentum imaging of the prototypical biomolecule indole was disentangled in a combined experimental and computational approach. Experimentally, strong co…
X-ray diffractive imaging of controlled gas-phase molecules: Toward imaging of dynamics in the molecular frame
Thomas Kierspel, Andrew Morgan, Joss Wiese +25
We report experimental results on the diffractive imaging of three-dimensionally aligned 2,5-diiodothiophene molecules. The molecules were aligned by chirped near-infrared laser pu…
Strong-field photoelectron momentum imaging of OCS at finely resolved incident intensities
Joss Wiese, Jean-François Olivieri, Andrea Trabattoni +2
Photoelectron momentum distributions from strong-field ionization of carbonyl sulfide with 800 nm central-wavelength laser pulses at various peak intensities from to $13\time…
Time-resolved inner-shell photoelectron spectroscopy: from a bound molecule to an isolated atom
Felix Brauße, Gildas Goldsztejn, Kasra Amini +47
Due to its element- and site-specificity, inner-shell photoelectron spectroscopy is a widely used technique to probe the chemical structure of matter. Here we show that time-resolv…
Impulsive laser-induced alignment of OCS molecules at FERMI
Michele Di Fraia, Paola Finetti, Robert Richter +13
We demonstrate the experimental realization of impulsive alignment of carbonyl sulfide (OCS) molecules at the Low Density Matter Beamline (LDM) at the free-electron laser FERMI. OC…
Strong laser alignment of solvent-solute aggregates in the gas-phase
Sebastian Trippel, Joss Wiese, Terry Mullins +1
Strong quasi-adiabatic laser alignment of the indole-water-dimer clusters, an amino-acid chromophore bound to a single water molecule through a hydrogen bond, was experimentally re…
Setting the photoelectron clock through molecular alignment
Andrea Trabattoni, Joss Wiese, Umberto De Giovannini +8
The interaction of strong laser fields with matter intrinsically provides powerful tools to image transient dynamics with an extremely high spatiotemporal resolution. Here, we stud…
Photophysics of indole upon x-ray absorption
Thomas Kierspel, Cédric Bomme, Michele Di Fraia +11
A photofragmentation study of gas-phase indole (CHN) upon single-photon ionization at a photon energy of 420 eV is presented. Indole was primarily inner-shell ionized at it…
Coulomb explosion imaging of concurrent CHBrI photodissociation dynamics
Michael Burt, Rebecca Boll, Jason W. L. Lee +47
The dynamics following laser-induced molecular photodissociation of gas-phase CHBrI at 271.6 nm were investigated by time-resolved Coulomb explosion imaging using intense nea…
Probing the UV-Induced Photodissociation of CHI and CHFI with Femtosecond Time-Resolved Coulomb Explosion Imaging at FLASH
Kasra Amini, Evgeny Savelyev, Felix Brauße +32
We explore time-resolved Coulomb explosion induced by intense, extreme ultraviolet (XUV) femtosecond pulses from the FLASH free-electron laser as a method to image photo-induced mo…
Alignment, Orientation, and Coulomb Explosion of Difluoroiodobenzene Studied with the Pixel Imaging Mass Spectrometry (PImMS) Camera
Kasra Amini, Rebecca Boll, Alexandra Lauer +33
Laser-induced adiabatic alignment and mixed-field orientation of 2,6-difluoroiodobenzene (C6H3F2I) molecules are probed by Coulomb explosion imaging following either near-infrared…
High-repetition-rate and high-photon-flux 70 eV high-harmonic source for coincidence ion imaging of gas-phase molecules
Jan Rothhardt, Steffen Hädrich, Yariv Shamir +23
Unraveling and controlling chemical dynamics requires techniques to image structural changes of molecules with femtosecond temporal and picometer spatial resolution. Ultrashort-pul…
Strongly aligned gas-phase molecules at Free-Electron Lasers
Thomas Kierspel, Joss Wiese, Terry Mullins +27
We demonstrate a novel experimental implementation to strongly align molecules at full repetition rates of free-electron lasers. We utilized the available in-house laser system at…