LASER-EXCITED DUST LATTICE WAVES IN PLASMA CRYSTALS

Authors
HOMANN A MELZER A PETERS S MADANI R PIEL A
Citation
A. Homann et al., LASER-EXCITED DUST LATTICE WAVES IN PLASMA CRYSTALS, Physics letters. A, 242(3), 1998, pp. 173-180
Citations number
23
Categorie Soggetti
Physics
Journal title
Physics letters. A → ACNP
ISSN journal
03759601
Volume
242
Issue
3
Year of publication
1998
Pages
173 - 180
Database
ISI
SICI code
0375-9601(1998)242:3<173:LDLWIP>2.0.ZU;2-H
Abstract
Laser-excited waves in a two-dimensional dust plasma crystal have been observed experimentally in a parallel plate rf discharge. The measure d dispersion relation is compared with theoretical models. Agreement i s 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 El sevier Science B.V.