Method for retrieving effective properties of locally resonant acoustic metamaterials

被引：436

作者：

Fokin, Vladimir ^{[1
]}

Ambati, Muralidhar ^{[1
]}

Sun, Cheng ^{[1
]}

Zhang, Xiang ^{[1
]}

机构：

[1] Univ Calif Berkeley, Nanoscale Sci Engn Ctr, Berkeley, CA 94720 USA

来源：

PHYSICAL REVIEW B | 2007年 / 76卷 / 14期

关键词：

D O I：

10.1103/PhysRevB.76.144302

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Acoustic metamaterials can be described by effective material properties such as mass density and modulus. We have developed a method to extract these effective properties from reflection and transmission coefficients, which can be measured experimentally. The dependency of effective properties on the positions of the boundaries of the acoustic metamaterial is discussed, and a proper procedure to determine the boundaries is presented. This retrieval method is used to analyze various acoustic metamaterials, and metamaterials with negative effective properties are reported.

引用

页数：5

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