Browsing by Author "Rumbach, Paul"

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    Noncapillary Wave Dynamics due to Interfacial Coupling with Plasma Patterns at a Liquid Surface
    (American Physical Society, 2024) Dubrovski, Oles; Yang, Jinyu; Veloso Espinosa, Felipe Eduardo; Go, David B.; Chang, Hsueh-Chia; Rumbach, Paul
    We identify a new class of surface waves that arise at a plasma-liquid interface due to resonant coupling between discrete plasma pattern modes and a continuum of interfacial liquid surface wave modes. A wave mode is selected due to localized excitation by the plasma, and standing waves result when waves excited from different locations interact. These waves propagate with a slower phase velocity than traditional capillary waves, but exhibit the same damping behavior with respect to liquid viscosity. Surface tension does not appear to play a significant role. We propose a curvature-dependent Maxwell pressure mechanism to explain these nondispersive interfacial waves in the presence of plasma.