TY - JOUR
T1 - Method for retrieving effective properties of locally resonant acoustic metamaterials
AU - Fokin, Vladimir
AU - Ambati, Muralidhar
AU - Sun, Cheng
AU - Zhang, Xiang
PY - 2007/10/4
Y1 - 2007/10/4
N2 - 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.
AB - 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.
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U2 - 10.1103/PhysRevB.76.144302
DO - 10.1103/PhysRevB.76.144302
M3 - Article
AN - SCOPUS:35148852632
VL - 76
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
SN - 1098-0121
IS - 14
M1 - 144302
ER -