Schlieren Visualization of Acoustic Propagation Characteristics in a One-Dimensional Phononic Crystal

Schlieren Visualization of Acoustic Propagation Characteristics in a One-Dimensional Phononic Crystal
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一维声子晶体中声波传播特性的纹影可视化

DOI:
10.1088/0256-307x/30/8/084302
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发表时间:
2013-08
影响因子:
3.5
通讯作者:
Cheng Qian
Cheng Qian
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Jiang Xue-Ping;Qian Meng-Lu;Cheng Qian

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采用快速、无损伤的纹影可视化方法研究了有限长一维水玻璃声子晶体的声传播特性。利用纹影法对这种光子晶体的能带结构进行了实验测量,测量结果与理论计算结果高度一致。在不同频率的PC中的动态声场成像和PC的部件中的共振现象进行了观察。结果表明,纹影法是研究声波与光子晶体相互作用的有效手段。
The acoustic propagation characteristics of a finite one-dimensional water-glass phononic crystal (PC) are studied using the Schlieren visualization method, which is fast and non-invasive. The band structures of this PC are measured experimentally with continuous acoustic waves incident on it using the Schlieren method, and the results are highly consistent with the theoretical calculations. The dynamic acoustic field in the PC at different frequencies is imaged and the resonance phenomena in the components of the PC are observed. The results show that the Schlieren method is an effective means of studying the interactions between acoustic waves and PCs.
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