Engineering of band gap and cavity mode in phononic crystal strip waveguides

被引：19
|
作者：
Li, Changsheng [1 ]
Huang, Dan [1 ]
Guo, Jierong [1 ]
Nie, Jianjun [1 ]
机构：
[1] Hunan Univ Arts & Sci, Dept Phys & Elect Sci, Changde 415000, Peoples R China
来源：
PHYSICS LETTERS A | 2013年 / 377卷 / 38期
基金：
中国国家自然科学基金;
关键词：
Phononic crystal; Acoustic wave; Band gap; Cavity mode;
D O I：
10.1016/j.physleta.2013.07.039
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The optimal parameters for the largest band gap were investigated in three typical phononic crystal strip waveguides. Single cavity mode was created inside the band gap region by proper design of a defect. The band structures and the displacement distributions were discussed with the variation of the defect. Results show possibilities to guide extremely slow phonon cavity mode in strip waveguide with chosen displacement components, frequencies and symmetries. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：2633 / 2637
页数：5
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