Spectroscopic Assessment of Electron Temperature and Density of Open-Air FHG Laser-Induced Zinc Titanium Plasma

Abstract

This work used spectroscopic plasma emission analysis to investigate the parameters of ZnTi plasma formed in the atmosphere by a Q-switched Nd:YAG nanosecond laser system emitting infrared (1064 nm) laser light with an energy output spanning 200-500 mJ. The spectrometer was used to examine and record the emission spectrum profiles of (ZnTi), which helped to extract crucial plasma characteristics (i.e., [Formula: see text] and [Formula: see text]. The electron density was measured using the Stark broadening, and the plasma temperature was calculated using the Boltzmann plot technique. The electron temperature was between 2.04 and 2.15 eV, and the electron density was between (15.72 and 18.99) × 10[Formula: see text] cm[Formula: see text]. The Debye length ([Formula: see text], the number of particles in the Debye sphere ([Formula: see text], and the plasma frequency ([Formula: see text] can all be estimated from the electron temperature ([Formula: see text] and the electron density ([Formula: see text] ([Formula: see text].