activity
20162025
most citedTunable Isolated Attosecond X-ray Pulses with Gigawatt Peak Power from a Free-Electron Laser

482 citations · 876 across the 16 of their papers we have counts for

collaborators
Showing physics.chem-phShow all

11 papers · 1 filter

physics.chem-ph2025★ 10 cited

Imaging valence electron rearrangement in a chemical reaction using hard X-ray scattering

Ian Gabalski, Alice Green, Philipp Lenzen +24

We have observed the signatures of valence electron rearrangement in photoexcited ammonia using ultrafast hard X-ray scattering. Time-resolved X-ray scattering is a powerful tool f…

physics.chem-ph2023

Femtosecond electronic and hydrogen structural dynamics in ammonia imaged with ultrafast electron diffraction

Elio G. Champenois, Nanna H. List, Matthew Ware +18

Directly imaging structural dynamics involving hydrogen atoms by ultrafast diffraction methods is complicated by their low scattering cross-sections. Here we demonstrate that megae…

physics.chem-ph2022★ 22 cited

Rehybridization dynamics into the pericyclic minimum of an electrcyclic reaction imaged in real-time

Yusong Liu, David M. Sanchez, Matthew R. Ware +17

Electrocyclic reactions are characterized by the concerted formation and cleavage of both σ and π bonds through a cyclic structure. This structure is known as a pericyclic transiti…

physics.chem-ph2021★ 54 cited

Conformer-specific Chemistry Imaged in Real Space and Time

E. G. Champenois, D. M. Sanchez, J. Yang +17

Conformational isomers or conformers of molecules play a decisive role in chemistry and biology. However, experimental methods to investigate chemical reaction dynamics are typical…

physics.chem-ph2021★ 97 cited

Attosecond Coherent Electron Motion in Auger-Meitner Decay

Siqi Li, Taran Driver, Philipp Rosenberger +38

In quantum systems, coherent superpositions of electronic states evolve on ultrafast timescales (few femtosecond to attosecond, 1 as = 0.001 fs = 10^{-18} s), leading to a time dep…

physics.chem-ph2020★ 6 cited

Photoelectron and fragmentation dynamics of the H + H dissociative channel in NH following direct single-photon double ionization

Kirk A. Larsen, Thomas N. Rescigno, Travis Severt +18

We report measurements on the H + H fragmentation channel following direct single-photon double ionization of neutral NH at 61.5 eV, where the two photoelectrons…