Investigation of the plasma parameters induced from a silver source in air using Boltzmann–Blott approach

Abstract

In this paper, the influence of laser irradiance on the plasma characteristics of a silver target is investigated in relation to one another. A Q-switched nanosecond Nd:YAG laser with the fundamental harmonic wavelength (1064 nm) and an irradiance ranging from [Formula: see text] W/cm2to [Formula: see text] W/cm2was used to irradiate these matrices. The irradiance was measured at atmospheric pressure. Temperature of the plasma and the electron density were calculated for different laser intensities of silver based on their oxidation states. The Boltzmann plot and the Stark broadening technique were used to compute the properties of the plasma ([Formula: see text] and [Formula: see text]. Based on the findings, it is clear that the temperature of the electrons in the Ag plasma does not increase linearly with increasing laser irradiation. These variations in the temperatures of the electrons in those matrices are brought on by matrix effects. On the other hand, an increase in laser irradiance was shown to cause an increase in electron density, which resulted in a widening of the line profiles associated to electron density.