Acoustic metamaterials are introduced as the structures with the alternating elements possessing effective properties that can be tuned seeking for the dramatic control on wave propagation. Homogenization of the structure under consideration is needed aiming to calculate permittivity of metamaterial. We present theoretical outcomes studying an acoustic composite possessing negative effective parameters in the acoustic frequency range. An acoustic metamaterial with an the alternating nanowires arranged in a building block and embedded in a host material was investigated. Propagation of surface plasmon polaritons at the metamaterial interface was predicted.

中文翻译：

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声学超材料引导的表面等离激元极化子

引入声学超材料作为具有有效特性的交替元素的结构，可以对其进行调整以寻求对波传播的戏剧性控制。为了计算超材料的介电常数，需要对所考虑的结构进行均质化。我们提出了研究在声学频率范围内具有负有效参数的声学复合材料的理论成果。研究了一种具有交替纳米线的声学超材料，该交替纳米线布置在构件中并嵌入主体材料中。预测了超材料界面处表面等离激元极化子的传播。