Generation of Picosecond Ion Pulses Using Laser-Stimulated Desorption from a Tungsten Nanotip - Dataset

Dataset Description This data repository provides the underlying data and plotting routines associated with the manuscript titled "Generation of Picosecond Ion Pulses Using Laser-Stimulated Desorption from a Tungsten Nanotip" by Redl et al., published in Physical Review Research (2025). DOI: doi.org/10.1103/7wdx-97pf In the manuscript, we demonstrate a compact experimental method for generating sub-100 ps ion pulses at 4.5–8.5 keV using laser-stimulated desorption from room-temperature tungsten nanotips.

Femtosecond UV pulses ionize adsorbed atoms and molecules within the naturally nanoscale field-enhanced region at the tip apex, enabling efficient ion production at moderate fluence. Time-of-flight measurements show stable, well-timed pulses, and we systematically map their dependence on laser settings and gas loading conditions. This simple source design supports time-resolved ion–solid interaction experiments and opens the door to future pump–probe studies.