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physics.class-ph2014★ 41 cited
Extraordinary focusing of sound above a soda can array without time reversal
A. A. Maznev, Gen Gu, Shu-yuan Sun +4
Recently, Lemoult et al. [Phys. Rev. Lett. 107, 064301 (2011)] used time reversal to focus sound above an array of soda cans into a spot much smaller than the acoustic wavelength i…
physics.class-ph2009★ 27 cited
Focusing Ultrasound with Acoustic Metamaterial Network
Shu Zhang, Leilei Yin, Nicholas Fang
We present the first experimental demonstration of focusing ultrasound waves through a flat acoustic metamaterial lens composed of a planar network of subwavelength Helmholtz reson…