Author
Domino, L
Tarpin, M
Patinet, S
Eddi, A
Journal title
Physical Review E
DOI
10.1103/physreve.93.050202
Issue
5
Volume
93
Last updated
2020-11-07T03:51:35.133+00:00
Page
050202-
Abstract
Metamaterials enable the emergence of novel physical properties due to the existence of an underlying subwavelength structure. Here, we use the Faraday instability to shape the fluid-air interface with a regular pattern. This pattern undergoes an oscillating secondary instability and exhibits spontaneous vibrations that are analogous to transverse elastic waves. By locally forcing these waves, we fully characterize their dispersion relation and show that a Faraday pattern presents an effective shear elasticity. We propose a physical mechanism combining surface tension with the Faraday structured interface that quantitatively predicts the elastic wave phase speed, revealing that the liquid interface behaves as an elastic metamaterial.
Symplectic ID
959085
Publication type
Journal Article
Publication date
19 May 2016
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