Mechanisms of nanoparticle formation by ultra-short laser ablation of metals in liquid environment

摘要

Laser ablation in liquids is now commonly used to produce colloidal nanoparticles (NPs) that have found numerous applications in different areas. In the experiments, NPs of different materials can be rather easily produced by using laser systems with various pulse durations, shape, wavelengths, and fluence. Here, we focus our attention on metal (gold) nanoparticles produced by ultra-short laser pulses due to their unique plasmonic properties. To better understand the mechanisms of the NPs formation, we perform modeling of ultra-short laser interactions with gold target in the presence of a liquid (water).