Acoustic Diode: Rectification of Acoustic Energy Flux in One-Dimensional Systems
Acoustic Diode: Rectification of Acoustic Energy Flux in One-Dimensional Systems
复制标题
声二极管：一维系统中声能通量的整流
DOI：
10.1103/physrevlett.103.104301
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发表时间：
2009-09-04
影响因子：
8.6
通讯作者：
Cheng, Jian-chun
中科院分区：
文献类型：
--
作者：
Liang, Bin;Yuan, Bo;Cheng, Jian-chun
我们用数值方法证明了一个简单的由超晶格与强非线性介质耦合形成的声学二极管的一维模型。第一次数值观测表明，在特定频率范围内，声能通量有显著的整流效应。通过对整流机理和整流效率参数依赖性的研究，证明了声二极管的简单性和有效性。我们还简要讨论了该模型实验实现的可能方案，并设计了更有效的模型。
We numerically demonstrate a simple one-dimensional model of an acoustic diode formed by coupling a superlattice with a strongly nonlinear medium. The first numerical observation is presented of a significant rectifying effect on the acoustic energy flux within particular ranges of frequencies. By studying the underlying rectifying mechanism and the parameter dependence of the rectifying efficiency, the effectiveness of the acoustic diode is proved despite its simplicity. We also briefly discuss possible schemes of the experimental realization of this model as well as devising more efficient models.