中国物理B ›› 2013, Vol. 22 ›› Issue (3): 36101-036101.doi: 10.1088/1674-1056/22/3/036101

• CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES • 上一篇    下一篇

Band structure characteristics of T-square fractal phononic crystals

刘晓健, 凡友华   

  1. School of Natural Sciences and Humanities, Shenzhen Graduate School of Harbin Institute of Technology, Shenzhen 518055, China
  • 收稿日期:2012-05-28 修回日期:2012-10-23 出版日期:2013-02-01 发布日期:2013-02-01
  • 基金资助:
    Project supported by the Research and Development Funds of the Shenzhen Science and Technology (Grant No.JC201005260129A).

Band structure characteristics of T-square fractal phononic crystals

Liu Xiao-Jian (刘晓健), Fan You-Hua (凡友华)   

  1. School of Natural Sciences and Humanities, Shenzhen Graduate School of Harbin Institute of Technology, Shenzhen 518055, China
  • Received:2012-05-28 Revised:2012-10-23 Online:2013-02-01 Published:2013-02-01
  • Contact: Fan You-Hua E-mail:yhfan@hit.edu.cn
  • Supported by:
    Project supported by the Research and Development Funds of the Shenzhen Science and Technology (Grant No.JC201005260129A).

摘要: The T-square fractal two-dimensional phononic crystal model is presented in this article. A comprehensive study is performed for the Bragg scattering and locally resonant fractal phononic crystal. We find that the band structures of the fractal and non-fractal phononic crystals at the same filling ratio are quite different through using the finite element method. The fractal design has important impact on the band structures of the two-dimensional phononic crystals.

关键词: fractal design, phononic crystal, band gap, filling ratio

Abstract: The T-square fractal two-dimensional phononic crystal model is presented in this article. A comprehensive study is performed for the Bragg scattering and locally resonant fractal phononic crystal. We find that the band structures of the fractal and non-fractal phononic crystals at the same filling ratio are quite different through using the finite element method. The fractal design has important impact on the band structures of the two-dimensional phononic crystals.

Key words: fractal design, phononic crystal, band gap, filling ratio

中图分类号:  (Fractals; macroscopic aggregates (including diffusion-limited Aggregates))

  • 61.43.Hv
63.20.-e (Phonons in crystal lattices) 71.20.-b (Electron density of states and band structure of crystalline solids)