activity
20172026
most citedHigh-fidelity phase and amplitude control of phase-only computer generated holograms using conjugate gradient minimisation

52 citations · 125 across the 9 of their papers we have counts for

collaborators

9 papers

cond-mat.mtrl-sci2026

Depth-resolved magnetization dynamics in Fe thin films after ultrafast laser excitation

Valentin Chardonnet, Marcel Hennes, Romain Jarrier +12

We performed time-resolved x-ray resonant magnetic reflectivity measurements on a laser-excited ferromagnetic Fe thin film to simultaneously probe the transient magnetic and struct…

cond-mat.mtrl-sci2023★ 8 cited

Ultrafast Opto-magnetic Effects in the Extreme Ultraviolet Spectral Range

Martin Hennecke, Clemens von Korff Schmising, Kelvin Yao +20

Coherent light-matter interactions mediated by opto-magnetic phenomena like the inverse Faraday effect (IFE) are expected to provide a non-thermal pathway for ultrafast manipulatio…

cond-mat.mtrl-sci2022★ 7 cited

A Rate Model of Electron Populations for Non-linear High-Fluence X-ray Absorption Near-Edge Spectra

Robin Y. Engel, Markus Scholz, Jan O. Schunck +1

Absorbing a focused, femtosecond X-ray pulse from a Free-Electron Laser (FEL) can lead to extreme electronic excitations in solids. This excitation drives changes of the electronic…

cond-mat.mtrl-sci2022★ 7 cited

Electron Dynamics at High-Energy Densities in Nickel from Non-linear Resonant X-ray Absorption Spectra

Robin Y. Engel, Oliver Alexander, Kaan Atak +40

The pulse intensity from X-ray free-electron lasers (FELs) can create extreme excitation densities in solids, entering the regime of non-linear X-ray-matter interactions. We show L…

cond-mat.mtrl-sci2020★ 2 cited

Time-Resolved XUV absorption spectroscopy and magnetic circular dichroism at the Ni -edges

Marcel Hennes, Benedikt Rösner, Valentin Chardonnet +21

Ultrashort optical pulses can trigger a variety of non-equilibrium processes in magnetic thin films affecting electrons and spins on femtosecond timescales. In order to probe the c…

cond-mat.mtrl-sci2020★ 1 cited

Ultrafast time-evolution of chiral Néel magnetic domain walls probed by circular dichroism in x-ray resonant magnetic scattering

Cyril Léveillé, Erick Burgos-Parra, Yanis Sassi +18

Non-collinear spin textures in ferromagnetic ultrathin films are attracting a renewed interest fueled by possible fine engineering of several magnetic interactions, notably the int…

cond-mat.mes-hall2020★ 29 cited

Laser-induced ultrafast demagnetization and perpendicular magnetic anisotropy reduction in a CoTb thin film with stripe domains

M. Hennes, A. Merhe, X. Liu +15

We use time-resolved x-ray resonant magnetic scattering (tr-XRMS) at the Co M- and Tb O-edges to study ultrafast demagnetization in an amorphous CoTb allo…

cond-mat.mtrl-sci2020★ 19 cited

Simultaneous two-color snapshot view on ultrafast charge and spin dynamics in a Fe-Cu-Ni tri-layer

Benedikt Rösner, Boris Vodungbo, Valentin Chardonnet +19

Ultrafast phenomena on a femtosecond timescale are commonly examined by pump-probe experiments. This implies multiple measurements where the sample under investigation is pumped wi…

physics.optics2017★ 52 cited

High-fidelity phase and amplitude control of phase-only computer generated holograms using conjugate gradient minimisation

D. Bowman, T. L. Harte, V. Chardonnet +7

We demonstrate simultaneous control of both the phase and amplitude of light using a conjugate gradient minimisation-based hologram calculation technique and a single phase-only sp…