Laser-induced breakdown spectrometry with laser pulses in femtoseconds to picoseconds regime and their influence on ablation quality

Abstract

The communication is focused on the influence of the pulse width, ranging from femtosecond to picosecond, on the laser – matter interaction during laser ablation of solid materials. Modifications in the stretcher-compressor do allow the continuous selection of amplified pulses in the range between 35 fs to 4 ps. Time constants, fluence threshold, and multi-channel spectra have been measured out of the generated plasmas.