Coupling of cavity modes and guiding modes in two-dimensional phononic crystals |
| |
| Authors: | Xiaochun Li Zhengyou Liu |
| |
| Affiliation: | a Department of Physics, Wuhan University, Wuhan 430072, China
b Department of Physics, Center South University, Changsha 410073, China |
| |
| Abstract: | 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. |
| |
| Keywords: | 43.20.+g 43.35.+d 43.40.+s |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
