Extraordinary focusing of sound above a soda can array without time reversal

Extraordinary focusing of sound above a soda can array without time reversal

Recently, Lemoult et al (2011 Phys. Rev. Lett. http://dx.doi.org/10.1103/PhysRevLett.107.064301 107 http://dx.doi.org/10.1103/PhysRevLett.107.064301 ) used time reversal to focus sound above an array of soda cans into a spot much smaller than the acoustic wavelength in air. In this study, we show th...

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Bibliographic Details
Main Authors: A A Maznev, Gen Gu, Shu-yuan Sun, Jun Xu, Yong Shen, Nicholas Fang, Shu-yi Zhang
Format: Article
Language:English
Published: IOP Publishing 2015-01-01
Series:New Journal of Physics
Subjects:
acoustic metamaterials
diffraction limit
locally resonant waveguiding
Online Access:https://doi.org/10.1088/1367-2630/17/4/042001

Internet

https://doi.org/10.1088/1367-2630/17/4/042001

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