Laser-excited dust lattice waves in plasma crystals

被引:149
作者
Homann, A [1 ]
Melzer, A [1 ]
Peters, S [1 ]
Madani, R [1 ]
Piel, A [1 ]
机构
[1] Univ Kiel, Inst Expt & Angew Phys, D-24098 Kiel, Germany
关键词
D O I
10.1016/S0375-9601(98)00141-8
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Laser-excited waves in a two-dimensional dust plasma crystal have been observed experimentally in a parallel plate rf discharge. The measured dispersion relation is compared with theoretical models. Agreement is found with dust lattice waves, whereas deviations from dust acoustic waves exist. From the dispersion relation of a dust lattice wave the screening of the particles in the rf sheath is determined. (C) 1998 Elsevier Science B.V.
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页码:173 / 180
页数:8
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