Transmission Frequency Properties of Elastic Waves along a Hetero-Phononic Crystal Waveguide  

作　　者：姚源卫 侯志林 刘有延 

机构地区：[1]Department of Physics, South China University of Technology, Guangzhou 510640 [2]Department of Physics, Guangdong University of Technology, Guangzhou 510643

出　　处：《Chinese Physics Letters》2007年第2期468-470,共3页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant No 10474021, and the Guangdong Provincial Natural Science Foundation of China under Grant No 013009.

摘　　要：We investigate the propagation properties of hetero-phononic crystal waveguides by the improved eigen-mode matching theory, which can be used at same time to calculate both the transmission （reflection） coefficient and band structure. The numerical results show that the transmission frequency range is the same as the common range for two uniform waveguides composing the hereto-system, and the gap of any composite waveguide is also the gap of the hetero-phononic crystals waveguide.We investigate the propagation properties of hetero-phononic crystal waveguides by the improved eigen-mode matching theory, which can be used at same time to calculate both the transmission （reflection） coefficient and band structure. The numerical results show that the transmission frequency range is the same as the common range for two uniform waveguides composing the hereto-system, and the gap of any composite waveguide is also the gap of the hetero-phononic crystals waveguide.

关 键 词：BAND-GAPS SCATTERING 

分 类 号：O43[机械工程—光学工程]