Dust Hour Glass in a Capacitive RF Discharge

作者：Iwashita Shinya^*; Schuengel Edmund; Schulze Julian; Hartmann Peter; Donko Zoltan; Uchida Giichiro; Koga Kazunori; Shiratani Masaharu; Czarnetzki Uwe

来源：IEEE Transactions on Plasma Science, 2014, 42(10): 2672-2673.

DOI：10.1109/TPS.2014.2343975

• Dusty plasmas
• plasma sheaths
• radio frequency

Cyclic transport of dust particles (dust hour glass) in a capacitively coupled radio frequency discharge with horizontal electrodes is demonstrated. Dust transport toward the upper electrode is initiated by varying the electrical asymmetry of the discharge. A shaped upper electrode guides dust particles to move toward the center of the discharge. Subsequently, the dust drops through the plasma bulk spontaneously, this way returning to the starting location.

• 出版日期2014-10