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二维蜂窝晶格钢/水声子晶体能带结构

Keywords: 声子晶体,带隙,平面波展开法,结构因子

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Abstract:

利用平面波展开法研究了钢柱按蜂窝晶格周期排列水中构成二维钢/水声子晶体的能带结构,并详细推导了蜂窝晶格的2种结构因子.基于超声浸水透射技术,沿着第一简约布里渊区2个高对称方向测试声子晶体的带隙.实验结果表明,第一完全带隙频率范围与理论计算结果相吻合.

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