Carousel Instability in a Capacitively Coupled RF Dusty Plasma

Maxime Mikikian (1) , Lénaïc Couëdel (1, 2) , Yves Tessier (1) , Laifa Boufendi (1)

1 GREMI - Groupe de recherches sur l'énergétique des milieux ionisés
2 MPE - Max Planck Institute for Extraterrestrial Physics

Rotating plasma spheroids are observed in a capacitively coupled radio-frequency discharge containing grown dust particles. These plasma spheroids are regions of slightly enhanced emission that rotate along the circumference of electrodes. This effect is not observed systematically, and when it occurs, the number and the speed of the spheroids can vary with the discharge parameters. These spheroids have been evidenced by using high-speed imaging.

Mots clés: Dusty plasmas; Complex plasmas; Instabilities; Electrode; Guard ring; Spheroid

Domaines: Plasmas; Physique des plasmas [physics.plasm-ph]

Maxime Mikikian, Lénaïc Couëdel, Yves Tessier, Laifa Boufendi. Carousel Instability in a Capacitively Coupled RF Dusty Plasma. IEEE Transactions on Plasma Science, 2011, 39, pp.2748. ⟨10.1109/TPS.2011.2155675⟩. ⟨hal-00612848⟩