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首页> 外文期刊>Journal of Applied Physics >Acoustic beam splitting in two-dimensional phononic crystals using self-collimation effect
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Acoustic beam splitting in two-dimensional phononic crystals using self-collimation effect

机译：使用自准直效应的二维声子晶体中的声束分裂

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摘要

We propose two models of self-collimation-based beam splitters in phononic crystals. The finite element method is used to investigate the propagation properties of acoustic waves in two-dimensional phononic crystals. The calculated results show that the efficiency of the beam splitter can be controlled systematically by varying the radius of the rods or by changing the orientation of the square rods in the line defect. The effect of changing the side length of the square rods on acoustic wave propagation is discussed. The results show that the total transmission/reflection range decreases/increases as the side length increases. We also find that the relationship between the orientation of the transflective point and the side length of the square rods is quasi-linear.
机译：我们在声子晶体中提出了两种基于自准直的分束器模型。有限元方法用于研究声波在二维声子晶体中的传播特性。计算结果表明，可以通过改变杆的半径或通过改变线缺陷中方杆的方向来系统地控制分束器的效率。讨论了改变方杆的边长对声波传播的影响。结果表明，总透射/反射范围随着边长的增加而减小/增加。我们还发现，透反射点的方向与方杆的边长之间的关系是准线性的。

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  • 来源
    《Journal of Applied Physics》 |2015年第14期|144903.1-144903.6|共6页
  • 作者

    Jing Li; Fugen Wu; Huilin Zhong; Yuanwei Yao; Xin Zhang;

  • 作者单位

    Department of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006, China,Department of Experiment Education, Guangdong University of Technology, Guangzhou 510006, China;

    Department of Experiment Education, Guangdong University of Technology, Guangzhou 510006, China;

    Department of Experiment Education, Guangdong University of Technology, Guangzhou 510006, China;

    Department of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006, China;

    Department of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
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