Out-of-plane propagation of elastic waves in two-dimensional phononic band-gap materials.
Out-of-plane propagation of elastic waves in two-dimensional phononic band-gap materials.
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DOI：
10.1103/physreve.67.065602
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发表时间：
2003-06
期刊：
影响因子：
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通讯作者：
M. Wilm;A. Khelif;S. Ballandras;V. Laude;B. Djafari-Rouhani
中科院分区：
文献类型：
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作者：
M. Wilm;A. Khelif;S. Ballandras;V. Laude;B. Djafari-Rouhani
我们用平面波展开模型研究了弹性波在二维声子带隙材料中的平面外传播。计算了镶嵌在环氧树脂中的石英棒。平行于杆的波矢分量的非零值的带隙是存在的，并进行了研究。在小于结构周期的波长范围内，模式分布在环氧位间，并垂直于结构平面传播。
We have used a plane-wave-expansion model to study the out-of-plane propagation of elastic waves in a two-dimensional phononic band-gap material. The case of quartz rods embedded in an epoxy matrix has been computed. Band gaps for nonzero values of the wave-vector component parallel to the rods are shown to exist and are investigated. For wavelengths smaller than the period of the structure, modes are found that are localized in the epoxy intersites, and propagate perpendicularly to the plane of the structure.