2011
DOI: 10.1063/1.3660546
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Experimental quiescent drifting dusty plasmas and temporal dust acoustic wave growth

Abstract: We report on dust acoustic wave growth rate measurements taken in a dc (anode glow) discharge plasma device. By introducing a mesh with a variable bias 12-17 cm from the anode, we developed a technique to produce a drifting dusty plasma. A secondary dust cloud, free of dust acoustic waves, was trapped adjacent to the anode side of the mesh. When the mesh was returned to its floating potential, the secondary cloud was released and streamed towards the anode and primary dust cloud, spontaneously exciting dust ac… Show more

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Cited by 23 publications
(25 citation statements)
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“…Dust acoustic waves propagate, in stationary dust, in the direction of the ion drift, which is away from the anode or toward the mesh. This was evidenced by the curvature of the wavefronts in the secondary cloud (see Heinrich et al 2011, for further details). As the cloud continued to flow past the wire, the shock began to weaken [ Fig.…”
Section: Results Using Configuration Imentioning
confidence: 96%
See 1 more Smart Citation
“…Dust acoustic waves propagate, in stationary dust, in the direction of the ion drift, which is away from the anode or toward the mesh. This was evidenced by the curvature of the wavefronts in the secondary cloud (see Heinrich et al 2011, for further details). As the cloud continued to flow past the wire, the shock began to weaken [ Fig.…”
Section: Results Using Configuration Imentioning
confidence: 96%
“…From measurements of the speeds of the dust acoustic waves in the secondary and primary clouds, and taking the dust acoustic speed (in the lab frame) as the speed of the waves in the primary cloud, it was estimated that the flow speed of the secondary cloud was about twice the dust acoustic speed, so that the Mach number of the flow was M ∼ 2. Further experimental details of the trapping and release of the secondary dust cloud and the excitation of dust acoustic waves were reported by Heinrich et al (2011).…”
Section: Configuration Imentioning
confidence: 97%
“…To the best of our knowledge, up to now there are only a few theoretical and experimental studies of the wave phenomena in flowing dusty plasma performed in dc discharges. 5,7,9,26 We consider now the conditions leading to the zero dust drift velocity. This requires F ¼ 0, defined by (10), and leads to the conclusion that the ion drift velocity u (or the discharge electric field E 0 ) and the dust charge density have to be unambiguously related in a certain way to provide v 0d ¼ 0.…”
Section: Equilibrium Considerationmentioning
confidence: 99%
“…Since being initially predicted in 1990 1 and identified experimentally in 1995, 2 the DAW has been a topic of great experimental, [3][4][5][6][7][8][9][10] and theoretical, [11][12][13][14] interest within the dusty plasma community. While the majority of the experimental studies of this wave mode have been restricted to measurements in a two-dimensional plane (i.e., the slice of the dust cloud illuminated by a thin laser sheet) and a number of these studies have hinted that the wave motion associated the dust acoustic wave is three-dimensional, there have been relatively few studies that have examined the potential three-dimensional wave motion associated with this wave mode.…”
Section: Introductionmentioning
confidence: 99%