声波在声子带隙材料中的传输

Acoustic wave transimit in phonon band gap material

研究了声波在二维声子带隙材料中的传输特性,把声子带隙材料作为一个散射体进行处理。在远场近似下(kr 1),计算了声波在有限范围内声子带隙材料中的传输系数,得到了与带结构符合很好的计算结果。

In this paper, we study transmissive property of acoustic wave in the two dimensional phonon band gap materal（PBG）. In the far field,we treat PBG samples as scattering objects and calculate transmission coefficient of acoustic wave in the finite-sized phonon band gap materals,the calculated resulte agree well with the band structure.