摘要
利用一维固-流结构矩形掺杂声子晶体中弹性波横向受限的条件,推导出弹性波在一维固-流结构矩形掺杂声子晶体中各个模式满足的关系式.研究弹性波各模式的缺陷模随模式量子数和杂质厚度的变化规律.利用缺陷模随模式量子数的变化规律可以实现多通道滤波,利用缺陷模随杂质厚度的变化规律可以实现调谐滤波.
Mode condition of elastic wave in solid-fluid rectangular doping phononic crystals is obtained with restriction conditions of elastic wave.Response of defect mode to mode quantum number and length of rectangle are calculated.Multichannel filters are realizated with relationship of defect mode and mode quantum number.Harmonious filters are obtained as defect mode varies with mode length of rectangle.
出处
《计算物理》
EI
CSCD
北大核心
2011年第2期301-305,共5页
Chinese Journal of Computational Physics
基金
重庆市教委科技项目基金(批准号:KJ100717)资助项目
关键词
矩形声子晶体
弹性波
受限
滤波
rectangular phononic crystal
elastic wave
restrictions
filter
