Wave-Driven Assembly of Quasiperiodic Patterns of Particles
Wave-Driven Assembly of Quasiperiodic Patterns of Particles
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粒子准周期模式的波驱动组装
DOI：
10.1103/physrevlett.126.145501
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发表时间：
2021
影响因子：
8.6
通讯作者：
Raeymaekers, Bart
中科院分区：
文献类型：
--
作者：
Cherkaev, Elena;Guevara Vasquez, Fernando;Mauck, China;Prisbrey, Milo;Raeymaekers, Bart
我们从理论上表明，平面波的叠加导致分散在流体中的小颗粒（与波长相比）以准周期性的二维或三维图案聚集。我们实验证明了这一理论，利用超声波组装准周期性图案的碳纳米粒子在水中使用的八边形排列的超声换能器，我们记录良好的理论和实验之间的一致性。该理论也适用于在粒子随线性波运动的其他情况下获得准周期图案，例如光学晶格。
We theoretically show that a superposition of plane waves causes small (compared to the wavelength) particles dispersed in a fluid to assemble in quasiperiodic two or three-dimensional patterns. We experimentally demonstrate this theory by using ultrasound waves to assemble quasiperiodic patterns of carbon nanoparticles in water using an octagonal arrangement of ultrasound transducers, and we document good agreement between theory and experiments. The theory also applies to obtaining quasiperiodic patterns in other situations where particles move with linear waves, such as optical lattices.