Wave mode coupling due to plasma wakes in two-dimensional plasma crystals: In-depth view

Journal Article · Mon Aug 15 00:00:00 EDT 2011 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.3620406· OSTI ID:22043449

Coueedel, L ^[1]; Zhdanov, S K; Ivlev, A V; Nosenko, V; Thomas, H M; Morfill, G E ^[1]

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1. Max Planck Institute for Extraterrestrial Physics, 85741 Garching (Germany)

Experiments with two-dimensional (2D) plasma crystals are usually carried out in rf plasma sheaths, where the interparticle interactions are modified due to the presence of plasma wakes. The wake-mediated interactions result in the coupling between wave modes in 2D crystals, which can trigger the mode-coupling instability and cause melting. The theory predicts a number of distinct fingerprints to be observed upon the instability onset, such as the emergence of a new hybrid mode, a critical angular dependence, a mixed polarization, and distinct thresholds. In this paper we summarize these key features and provide their detailed discussion, analyze the critical dependence on experimental parameters, and highlight the outstanding issues.

• OSTI ID: 22043449
• Journal Information: Physics of Plasmas, Vol. 18, Issue 8; Other Information: (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COUPLING
CRYSTALS
HYBRIDIZATION
INTERACTIONS
PLASMA
PLASMA INSTABILITY
PLASMA SHEATH
PLASMA WAVES
POLARIZATION
TWO-DIMENSIONAL CALCULATIONS