Study of streamer development in high-pressure electric discharge: Applications to excimer lasers

Theoretical investigation of streamer characteristics in Ne–Xe–HCl pulsed high-pressure discharges

“…Experimental investigations of XeCl lasers have proved that the instabilities occur before the end of laser emission [19][20][21]. In [22], we show that there is a strong distortion of the electric field due to a strong growth of the density of the streamer in the sheath during the formation of plasma. In another work [23], we used an analytical model to study the formation of the cathode-directed streamer in high pressure electrical discharge.…”

“…The gas mixture used in the simulations is Ne-Xe-HCl at room temperature. It is based on a longitudinal monodimensional model of the cathode region coupled to the zerodimensional model of the positive column [22]. In this model, two parallel-plate electrodes separated by a distance d are considered.…”

“…The profile of the non-uniform preionization considered in this work is that the electron and ion densities are zero for a distance less than 40 μm. However, these densities are equal to 10 7 cm −3 for a distance superior or equal to 40 μm [22]. The scheme of the discharge and external circuit is the same than that used in [22].…”

“…However, these densities are equal to 10 7 cm −3 for a distance superior or equal to 40 μm [22]. The scheme of the discharge and external circuit is the same than that used in [22].…”

Simple Analytical Model of the Anodic Streamer

“…The possibility of the formation and propagation of the cathode-directed streamer, for the case of excimer laser, is already investigated in our previous work [10] using one-dimensional fluid numerical modelling. In this paper, we present results from analytical model simulations of the formation and propagation of streamers in attaching (N 2 − O 2 mixture) and nonattaching (N e) gases.…”