利用气泡元屏增强和减少声波的传输
Enhanced and reduced transmission of acoustic waves with bubble meta-screens
摘要:
我们提出了一类用于操纵超声波或可听频率的空气传播声波的声波元屏幕。我们的屏幕由气泡在水中或可能嵌入软弹性矩阵的周期性排列组成。它们可用于隔音,但也可用于提高空气/水界面处的透射率,甚至用于实现增强的吸收。
英文摘要:
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.
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