Institute of Electrical and Electronics Engineers, IEEE Transactions on Plasma Science, 10(42), p. 2672-2673, 2014
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Cyclic transport of dust 1 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.