Skip to Main content Skip to Navigation
Conference papers

Anisotropic metamaterials for full control of acoustic waves

Johan Christensen Javier Garcia de Abajo *
* Corresponding author
Abstract : We show that a holey anisotropic metamaterial can exert subwavelength control over sound waves beyond that achieved with naturally occurring materials [Nature Physics 3, 851 (2007)]. We predict that, for appropriate choices of geometrical parameters, these metamaterials support negative refraction, backward wave propagation along a direction opposite with respect to the acoustic energy flow, and subwavelength imaging [Nature Physics 7, 52 (2011)] with both the source and the image situated far from the material. Acoustic subwavelength control can be advantageous for (bio-)medical ultrasonography and diagnostic imaging, acoustouflidic steering of microparticles and microorganisms, and sonochemistry enhanced by sound focusing.
Document type :
Conference papers
Complete list of metadata
Contributor : Hal System <>
Submitted on : Monday, April 23, 2012 - 10:00:00 AM
Last modification on : Monday, April 23, 2012 - 10:00:00 AM
Long-term archiving on: : Sunday, December 18, 2016 - 3:07:22 PM


Publisher files allowed on an open archive


  • HAL Id : hal-00810624, version 1



Johan Christensen, Javier Garcia de Abajo. Anisotropic metamaterials for full control of acoustic waves. Acoustics 2012, Apr 2012, Nantes, France. ⟨hal-00810624⟩



Record views


Files downloads