Adding of Nitrogen in Helium DBD: Consequences on the Self-Organization of the Discharge

Depending on the operating conditions, different regimes can be obtained in a dielectric barrier discharge (DBD): filamentary, diffuse/homogeneous, or self-organized. For a planeto-plane DBD operated at high frequency (150 kHz) and at atmospheric pressure in helium gas, we show that the addition of a small amount of nitrogen induces a transition from the homogenous regime to a self-organized regime characterized by the appearance of several stable strips always located at the same position.