Determination of the dust screening length by laser-excited lattice waves
- 1 December 1997
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review E
- Vol. 56 (6), 7138-7141
- https://doi.org/10.1103/physreve.56.7138
Abstract
The screening of dust particles immersed in the sheath of a parallel plate rf discharge in helium is studied by excitation of waves in a linear chain arrangement. The waves are excited by the radiation pressure of a modulated laser beam. The measured dispersion relation is compared with a one-dimensional dust lattice wave to obtain the shielding length. Dust acoustic waves are not compatible with the measured dispersion relation.Keywords
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