A5 - sDBD

He emission

Time-resolved electron impact excitation rate from the ground state into He I (3s)³S₁ near the grounded side of the SDBD, focused on a single electrode grid cell during a nanosecond-pulsed He/N₂ discharge at atmospheric pressure. The data is derived from phase-resolved optical emission measurements and captures the temporal evolution of excitation dynamics throughout the pulse. The video illustrates the formation and propagation of the ionization front.

Publication: Streamer propagation dynamics in a nanosecond pulsed surface dielectric barrier discharge in He/N2 mixtures, Gerrit Hübner*, Sebastian Wilczek, Nils Schoeneweihs, Dominik Filla, Thomas Mussenbrock and Ihor Korolov, J. Phys. D: Appl. Phys. 58 065201 (2025 )