Aluminum nanoparticles production with laser ablation in liquids

Abstract

In this paper we are analyzing the coupling between laser radiation and surface in order to set the optimum work conditions to obtain nanoparticles by laser ablation in liquids (LAL). In this idea we have studied the effects induced with a 355 nm wavelength Nd:YAG pulsed laser on an aluminum target situated in distilled water with non contact profilometry (WLI Xi-100) and by optical microscopy (Carl Zeiss microscope). We have measured, analyzed and intercompared the characteristics of the formed craters (diameter, depth and shape) on the aluminum target as a function of the laser radiation parameters (incident fluence, number of pulses).