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Wave-based liquid-interface metamaterials

Author

Listed:
  • N Francois

    (Centre for Plasmas and Fluids, Research School of Physics and Engineering, The Australian National University)

  • H Xia

    (Centre for Plasmas and Fluids, Research School of Physics and Engineering, The Australian National University)

  • H Punzmann

    (Centre for Plasmas and Fluids, Research School of Physics and Engineering, The Australian National University)

  • P W Fontana

    (Seattle University)

  • M Shats

    (Centre for Plasmas and Fluids, Research School of Physics and Engineering, The Australian National University)

Abstract

The control of matter motion at liquid–gas interfaces opens an opportunity to create two-dimensional materials with remotely tunable properties. In analogy with optical lattices used in ultra-cold atom physics, such materials can be created by a wave field capable of dynamically guiding matter into periodic spatial structures. Here we show experimentally that such structures can be realized at the macroscopic scale on a liquid surface by using rotating waves. The wave angular momentum is transferred to floating micro-particles, guiding them along closed trajectories. These orbits form stable spatially periodic patterns, the unit cells of a two-dimensional wave-based material. Such dynamic patterns, a mirror image of the concept of metamaterials, are scalable and biocompatible. They can be used in assembly applications, conversion of wave energy into mean two-dimensional flows and for organising motion of active swimmers.

Suggested Citation

  • N Francois & H Xia & H Punzmann & P W Fontana & M Shats, 2017. "Wave-based liquid-interface metamaterials," Nature Communications, Nature, vol. 8(1), pages 1-9, April.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_ncomms14325
    DOI: 10.1038/ncomms14325
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