SOLID-STATE ACOUSTIC METAMATERIAL AND METHOD OF USING SAME TO FOCUS SOUND
摘要
A phonemic crystal is made of a first solid medium having a first density and a substantially periodic array of structures disposed in the first medium, the structures being made of a second solid medium having a second density different from the first density. The first medium has a speed of propagation of longitudinal sound waves and a speed of propagation of transverse sound waves, the speed of propagation of longitudinal sound waves being approximately that of a fluid, and the speed of the propagation of transverse sound waves being smaller than the speed of propagation of longitudinal sound waves.
申请公布号
WO2010101910(A3)
申请公布日期
2011.01.13
申请号
WO2010US25909
申请日期
2010.03.02
申请人
THE ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA;DEYMIER, PIERRE, A.;BUCAY, JAIM;MERHEB, BASSAM