Acoustic focusing by coiling up space
作者： Yong Li , Bin Liang , Xu Tao , Xue-feng Zhu , Xin-ye Zou
DOI: 10.1063/1.4769984
关键词:
摘要: … We report the design of a gradient index acoustic lens by coiling up space, an entirely … a series of acoustic metamaterial units with curled channels. Acoustic waves propagate freely …
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