Triple-Coupled Intense Atmospheric Pressure Plasma Jet From Honeycomb Structural Plasma Device

The authors describe an intensified plasma jet from a honeycomb structural plasma jet array at atmospheric pressure. Despite an equally distributed gas flow, the outermost tubes did not produce strong individual plumes. Rather, the plasma plumes were drawn into the central plume, which was, in turn, amplified. As a result, the optical intensity from the 19-array plasma jet was nearly twice greater than that from a conventional single plasma jet at the maximum plasma emission condition of each device under identical applied voltages.