为了研究一维声子晶体中弹性波的全反射贯穿效应,利用转移矩阵法计算了弹性波在大于全反射角入射一维声子晶体的透射率.在透射波中发现了两条透射峰带,即出现了全反射贯穿效应.得出了贯穿效应随入射角的变化规律、贯穿效应随介质厚度的变化规律以及贯穿效应随周期数的变化规律.并利用波的量子理论和渐逝波的理论对一维声子晶体的贯穿效应作出了定性的理论解释.%For studying total reflection through effect of elastic wave in a 1D phononic crystal , the transition matrix method was adopted and the transmissivity of elastic wave was studied when incident angle was greater than full reflection angle. Two bands of transmission peaks were found in the transmission wave, I. E. , total reflection through effect occurred. Response curves of through effect versus incident angle, response curves of through effect versus medium thickness, and response curves of through effect versus cycle number were obtained. Total reflection through effect of elastic wave in a ID phononic crystal was explained with the theory of quantum and the theory of evanescent wave.
展开▼
