Acoustic Diode: Rectification of Acoustic Energy Flux in One-Dimensional Systems

被引：547
作者：
Liang, Bin
Yuan, Bo
Cheng, Jian-chun [1 ]
机构：
[1] Nanjing Univ, MOE, Lab Modern Acoust, Nanjing 210093, Peoples R China
来源：
PHYSICAL REVIEW LETTERS | 2009年 / 103卷 / 10期
基金：
美国国家科学基金会;
关键词：
MEDIA;
D O I：
10.1103/PhysRevLett.103.104301
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
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.
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页数：4
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