Glow Modes in Radio Frequency Atmospheric Discharge Operating With and Without Anodized Electrodes

A comparison of the visual appearance of the glow modes in radio frequency (RF) atmospheric pressure glow discharge (APGD) with bare electrodes and dielectric barrier discharge (DBD) using anodized electrodes is presented. In α mode, both RF APGD and RF DBD remain volumetric, stable, and uniform. In y mode, the RF APGD shrinks into a constricted plasma column. On the other hand, RF DBD in y mode is stable, horizontally uniform, and retains the same volume as that in α mode without plasma constriction.