Tuning of band-gap of phononic crystals with initial confining pressure  

作　　者：冯荣欣 刘凯欣 

机构地区：[1]LTCS and Department of Mechanics&Aerospace Engineering,College of Engineering,Peking University [2]Center for Applied Physics and Technology,Peking University

出　　处：《Chinese Physics B》2012年第12期366-371,共6页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant No.10732010,10972010,and 11028206)

摘　　要：The mechanism of the shift of the band-gap in phononic crystal （PC） with different initial confining pressures is studied experimentally and numerically. The experimental results and numerical analysis simultaneously indicate that the confining pressure can efficiently tune the location in and the width of the band-gap. The present work provides a basis for tuning the band-gap of phononic crystal in engineering applications.The mechanism of the shift of the band-gap in phononic crystal （PC） with different initial confining pressures is studied experimentally and numerically. The experimental results and numerical analysis simultaneously indicate that the confining pressure can efficiently tune the location in and the width of the band-gap. The present work provides a basis for tuning the band-gap of phononic crystal in engineering applications.

关 键 词：phononic crystals band-gap initial confining pressure modified split-Hopkinson pres-sure bar apparatus 

分 类 号：O469[理学—凝聚态物理]