Laser-Ablated SiO2:TiO2 Plasma Optical Emission Spectroscopy
Abstract
Laser ablation of sintered SiO2:TiO2 targets using Nd:YAG lasers at fundamental (1064nm) harmonic generation in the air has been studied using optical emission spectroscopy. Exploring the spatial fluctuations in electron temperature (Te) and electron density (ne), there is a discussion of how laser energy affects electron temperature (Te) and electron density (ne). Laser energy has also been shown to affect the intensity and velocity of neutral and ion species. Using existing data and theory, the findings were confirmed following the local thermodynamic equilibrium (LTE) hypothesis. Plasma properties such as Debye length (λd), (Nd) and plasma frequency (wp) were also studied in this study. Using a laser, we found that all plasma parameters were affected. In addition, the calculated inverse Bremsstrahlung absorption coefficients (αIB) were altered.