摘要
推导出弹性波斜入射固-固掺杂结构声子晶体的转移矩阵和透射系数公式.计算固-固掺杂结构声子晶体中弹性波的透射系数.得到当横波斜入射时,透射波中横波的缺陷模随着入射角的增大而减弱,横波向纵波的转型随着入射角的增大而增强.当纵波斜入射时,透射波中纵波的缺陷模随着入射角的增大而减弱,纵波向横波的转型随着入射角的增大而增强.
Transfer matrix and transmission coefficients in doping phononic crystal are obtained. Transmission coefficient of elastic waves in doping phononic crystal is calculated. With oblique incidence transversal wave, defect mode of transversal wave decreases with increase of incident angle. Transformation of transversal wave toward longitudinal wave increases with increase of incident angle. With oblique incidence longitudinal wave, defect mode of longitudinal wave decreases with increase of incident angle. Transformation of longitudinal wave toward transversal wave increases with increase of incident angle.
出处
《计算物理》
EI
CSCD
北大核心
2010年第1期131-136,共6页
Chinese Journal of Computational Physics
基金
重庆市教委科技项目基金(批准号:KJ080720)
废油资源化技术与装备教育部工程研究中心基金(批准号:07011302)资助项目
关键词
声子晶体
弹性波
转移矩阵
缺陷摸
phononic crystal
elastic wave
transfer matrix
defect mode
作者简介
刘启能(1957-),男,四川泸州,教授,从事光学与应用声学研究