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Ultrafast X-ray probes of elementary molecular events
Elementary events that determine photochemical outcomes and molecular functionalities
happen on the femtosecond and subfemtosecond timescales. Among the most ubiquitous …
happen on the femtosecond and subfemtosecond timescales. Among the most ubiquitous …
Time-resolved experiments on gas-phase atoms and molecules with XUV and X-ray free-electron lasers
Over the last 20 years, XUV and X-ray free-electron lasers have enabled a wide variety of
time-resolved experiments that have dramatically advanced our understanding of ultrafast …
time-resolved experiments that have dramatically advanced our understanding of ultrafast …
Step-by-step state-selective tracking of fragmentation dynamics of water dications by momentum imaging
The double photoionization of a molecule by one photon ejects two electrons and typically
creates an unstable dication. Observing the subsequent fragmentation products in …
creates an unstable dication. Observing the subsequent fragmentation products in …
Filming enhanced ionization in an ultrafast triatomic slingshot
Filming atomic motion within molecules is an active pursuit of molecular physics and
quantum chemistry. A promising method is laser-induced Coulomb Explosion Imaging (CEI) …
quantum chemistry. A promising method is laser-induced Coulomb Explosion Imaging (CEI) …
Molecular photodissociation dynamics revealed by Coulomb explosion imaging
Coulomb explosion imaging (CEI) methods are finding ever-growing use as a means of
exploring and distinguishing the static stereo-configurations of small quantum systems …
exploring and distinguishing the static stereo-configurations of small quantum systems …
[HTML][HTML] The beam transport system for the Small Quantum Systems instrument at the European XFEL: optical layout and first commissioning results
The Small Quantum Systems instrument is one of the six operating instruments of the
European XFEL, dedicated to the atomic, molecular and cluster physics communities. The …
European XFEL, dedicated to the atomic, molecular and cluster physics communities. The …
Alternative pathway to double-core-hole states
Excited double-core-hole states of isolated water molecules resulting from the sequential
absorption of two x-ray photons have been investigated. These states are formed through an …
absorption of two x-ray photons have been investigated. These states are formed through an …
The role of momentum partitioning in covariance ion imaging analysis
We present results from a covariance ion imaging study, which employs extensive filtering,
on the relationship between fragment momenta to gain deeper insight into …
on the relationship between fragment momenta to gain deeper insight into …
Sequential mechanism in H 3+ formation dynamics on the ethanol dication
Two-and three-body Coulomb explosion dynamics of isolated ethanol dications are studied
via single-photon double-ionization with ultrafast extreme-ultraviolet pulses. The measured …
via single-photon double-ionization with ultrafast extreme-ultraviolet pulses. The measured …
Machine-learning calibration of intense x-ray free-electron-laser pulses using Bayesian optimization
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 …
and molecular dynamics with unprecedented spatial and temporal resolutions. A …