Transmission Mode of One-Dimensional Phononic Crystal Based on Coupling of Total Evanescent Waves

被引：3
|
作者：
Fang, Yun-tuan [1 ]
Wang, Ji-jun [2 ]
Jiang, Ying-xin [2 ]
机构：
[1] Jiiangsu Univ, Sch Comp Sci & Telecommun Engn, Zhenjiang 212013, Peoples R China
[2] Jiangsu Univ, Dept Phys, Zhenjiang 212013, Peoples R China
来源：
ACOUSTICAL PHYSICS | 2014年 / 60卷 / 02期
关键词：
phononic crystal; evanescent waves; transmission mode; PERIODIC STRUCTURES; BAND-STRUCTURE;
D O I：
10.1134/S1063771014020043
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
In order to obtain the transmission properties of one-dimensional phononic crystal under total evanescent waves, we design structure model. Basing on the basic acoustic wave equations and boundary condition as well as the Bloch theory, we study the band structure of one-dimensional phononic crystal. We summarize the properties of the mode based on the coupling of total evanescent waves and explain its physical mechanism. There are three transmission modes in phononic crystal. Based on the coupling of total evanescent waves, the number of perfect transmission peaks is just equal to the number of structure period, and the thickness of period can be much less than the wave length.
引用
收藏
页码：148 / 154
页数：7
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