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Wave-based liquid-interface metamaterials
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DOI：10.1038/ncomms14325.png)
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摘要
En 中文
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.
Keyword:
STANDING SURFACE-WAVES
TURBULENCE
MOMENTUM
GASES
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期刊
IF:
15.7
论文数:
9.6W
被引数:
99.4W
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