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Collimation of sound assisted by acoustic surface waves

Nature Physics volume 3, pages 851852 (2007) | Download Citation



The discovery of the phenomenon of extraordinary optical transmission through a two-dimensional array of subwavelength holes in a metallic film1 has opened a new line of research within optics. The key role played by surface plasmons in transferring light efficiently from the input side of the metal film to the output region was soon realized. This fundamental knowledge enabled extension of this surface-plasmon ability to achieve extraordinary optical transmission and strong collimation of light in a single hole surrounded by a finite periodic array of indentations2. Here, we show how these ideas developed for electromagnetic radiation can be transferred to other classical waves such as acoustic waves.

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J.C. acknowledges the encouragement of H. Kamath. Financial support from the Spanish MEC under contract MAT2005-06608-C02 is gratefully acknowledged.

Author information


  1. Departamento de Fisica Teorica de la Materia Condensada, Universidad Autonoma de Madrid, Madrid 28049, Spain

    • J. Christensen
    • , A. I. Fernandez-Dominguez
    •  & F. J. Garcia-Vidal
  2. Departamento de Fisica de la Materia Condensada-ICMA, Universidad de Zaragoza, Zaragoza 50009, Spain

    • F. de Leon-Perez
    •  & L. Martin-Moreno


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Correspondence to F. J. Garcia-Vidal.

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