2 papers
physics.optics2026
The 2D approximation quickly breaks down in reflection ptychography
Sander Senhorst, Stefan Witte, Wim Coene
Ptychographic reconstructions in reflection geometries are commonly interpreted with the same two-dimensional thin-sample model used in transmission, yet the validity of this appro…
physics.optics2025
Improving signal-to-noise ratios in pump-probe spectroscopy on light-sensitive samples by adapting pulse repetition rates
Matthias C. Velsink, Maksym Illienko, Komal Chaudhary +1
Ultrafast optical pump-probe spectroscopy is a powerful tool to study dynamics in solid materials on femto- and picosecond timescales. In such experiments, a pump pulse induces dyn…