3 papers
physics.optics2026
Ultrafast Tracking of the Spallation Layer in Bulk Gold, Aluminum, and Steel
Nicolas Thomae, Julian Vollmann, Julian Freundel +3
Extreme manufacturing with ultrashort-pulse (USP) lasers at the physical limit of precision and efficiency requires understanding ablation dynamics on the picosecond-to-nanosecond…
physics.optics2026
Breakdown of spallation in multi-pulse ultrafast laser ablation
David Redka, Julian Vollmann, Nicolas Thomae +2
Ultrashort-pulse laser ablation of metals near damage threshold is governed by homogeneous spallation, in which tensile unloading releases a nanometre-thin liquid film whose optica…
hep-ex2025
From surface roughness to crater formation in a 2D multi-scale simulation of ultrashort pulse laser ablation
Nicolas Thomae, Maximilian Stabroth, Julian Vollmann +4
Surface roughness plays a critical role in ultrashort pulse laser ablation, particularly for industrial applications using burst mode operations, multi-pulse laser processing, and…