Coupling of cavity modes and guiding modes in two-dimensional phononic crystals
Coupling of cavity modes and guiding modes in two-dimensional phononic crystals
复制标题
DOI：
10.1016/j.ssc.2004.11.024
复制
发表时间：
2005-02-01
影响因子：
2.1
通讯作者：
Liu, ZY
中科院分区：
文献类型：
--
作者：
Li, XC;Liu, ZY
利用平面波膨胀超级单体方法研究了二维声子晶体中单腔和双腔的腔模。我们证明单腔的行为像一个原子，而双腔的行为像一个分子。研究了典型结构下腔模与波导模的耦合。在波导应用中，适当设计带腔的波导可以用作声滤波器。(C) 2004 Elsevier Ltd.版权所有。
Cavity modes for the single-cavity and the double-cavities in two-dimensional phononic crystal are studied by using a plane waves expansion supercell method. We show that the single-cavity behaves like an atom while the double-cavities behave like a molecule. Couplings of cavity modes with the waveguide modes are investigated for typical configurations. Suitably designed waveguides with introduced cavities might be used as acoustic filter in waveguide applications. (C) 2004 Elsevier Ltd. All rights reserved.