Enhanced and reduced transmission of acoustic waves with bubble meta-screens
arXiv:1111.1309 · doi:10.1063/1.3663623
Abstract
We present a class of sonic meta-screens for manipulating air-borne acoustic waves at ultrasonic or audible frequencies. Our screens consist of periodic arrangements of air bubbles in water or possibly embedded in a soft elastic matrix. They can be used for soundproofing, but also for exalting transmission at an air/water interface or even to achieve enhanced absorption.