Focusing Ultrasound with Acoustic Metamaterial Network

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dc.creatorZhang, Shu
dc.creatorYin, Leilei
dc.creatorFang, Nicholas
dc.date2009-03-29
dc.date.accessioned2026-07-07T12:57:45Z
dc.date.available2026-07-07T12:57:45Z
dc.descriptionWe present the first experimental demonstration of focusing ultrasound waves through a flat acoustic metamaterial lens composed of a planar network of subwavelength Helmholtz resonators. We observed a tight focus of half-wavelength in width at 60.5 KHz by imaging a point source. This result is in excellent agreement with the numerical simulation by transmission line model in which we derived the effective mass density and compressibility. This metamaterial lens also displays variable focal length at different frequencies. Our experiment shows the promise of designing compact and light-weight ultrasound imaging elements.
dc.identifierhttps://arxiv.org/abs/0903.5101
dc.identifierhttp://arxiv.org/abs/0903.5101
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/225044
dc.subjectClassical Physics
dc.titleFocusing Ultrasound with Acoustic Metamaterial Network
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