activity
20182025
most citedZeptosecond Birth Time Delay in Molecular Photoionization

108 citations · 283 across the 10 of their papers we have counts for

collaborators

10 papers

physics.chem-ph2025

Multiple charge transfer driven complex reaction dynamics: covalent bonding meets van der Waals interactions

Ruichao Dong, Xiaoqing Hu, Owen Dennis McGinnis +22

Ultrafast charge transfer (CT) processes redistribute electronic charge within and between molecular units and play a central role in many physical, chemical, and biological phenom…

physics.atom-ph2025★ 2 cited

Selective Bond Breaking in CO Induced by Photoelectron Recoil

J. Weiherer, N. Melzer, M. Kircher +16

After core-ionization of CO, typically an Auger-Meitner decay takes place, leading to the formation of a dicationic molecule that may dissociate into CO and O. We demon…

physics.atom-ph2024★ 9 cited

Role of the Coulomb Potential in Compton Scattering

N. Melzer, M. Kircher, A. Pier +18

We report a fully differential study of ionization of the Ne L-shell by Compton scattering of 20 keV photons. We find two physical mechanisms which modify the Compton-electron emis…

physics.atom-ph2021★ 14 cited

Photon-momentum-induced molecular dynamics in photoionization of N at keV

M. Kircher, J. Rist, F. Trinter +16

We investigate K-shell ionization of N at 40 keV photon energy. Using a COLTRIMS reaction microscope we determine the vector momenta of the photoelectron, the Auger electron an…

physics.atom-ph2021★ 18 cited

Recoil-Induced Asymmetry of Nondipole Molecular Frame Photoelectron Angular Distributions in the Hard X-ray Regime

M. Kircher, J. Rist, F. Trinter +15

We investigate angular emission distributions of the 1s-photoelectrons of N ionized by linearly polarized synchrotron radiation at keV. As expected, nondipole contribu…

physics.atom-ph2020★ 108 cited

Zeptosecond Birth Time Delay in Molecular Photoionization

Sven Grundmann, Daniel Trabert, Kilian Fehre +11

Photoionization is one of the fundamental light-matter interaction processes in which the absorption of a photon launches the escape of an electron. The time scale of the process p…

physics.atom-ph2020★ 14 cited

Chiral photoelectron angular distributions from ionization of achiral atomic and molecular species

Andreas Pier, Kilian Fehre, Sven Grundmann +12

We show that the combination of two achiral components - atomic or molecular target plus a circularly polarized photon - can yield chirally structured photoelectron angular distrib…

physics.atom-ph2020★ 38 cited

Observation of Photoion Backward Emission in Photoionization of He and N2

Sven Grundmann, Max Kircher, Isabel Vela-Perez +14

We experimentally investigate the effects of the linear photon momentum on the momentum distributions of photoions and photoelectrons generated in one-photon ionization in an energ…

physics.atom-ph2020★ 7 cited

Revealing the Two-Electron Cusp in the Ground States of He and H2 via Quasifree Double Photoionization

S. Grundmann, V. Serov, F. Trinter +15

We report on kinematically complete measurements and ab initio non-perturbative calculations of double ionization of He and H2 by a single 800 eV circularly polarized photon. We co…

physics.atom-ph2018★ 73 cited

Direct Experimental Access to the Nonadiabatic Initial Momentum Offset upon Tunnel Ionization

S. Eckart, K. Fehre, N. Eicke +11

We report on the non-adiabatic offset of the initial electron momentum distribution in the plane of polarization upon single ionization of argon by strong field tunneling and show…