Three-Dimensional Modeling of Argon Discharge Characteristics of a Large-Scale Rectangular Surface-Wave Plasma Source

A three-dimensional fluid model for surface-wave plasma (SWP), to investigate thedischarge characteristics of a rectangular SWP source working in a steady state, was presented.The simulation is performed for different gas pressures in argon and different deposited powers.The results showed that there is a peak of plasma density at a distance of 2 cm to 3 cm from theplasma-quartz interface whose position depends mainly on the gas pressure but not the depositedpower. The spatial distributions of plasma parameters and their dependence on the gas pressureand deposited power are also presented and discussed. Using this model a good agreement betweenthe simulation results and the available experimental data is obtained.