Metamaterials as Photonic or Phononic crystals: towards molding the flow of waves on subwavelength scales

Details Metamaterials as Photonic or Phononic crystals: towards molding the flow of waves on subwavelength scales Metamaterials as Photonic or Phononic crystals: towards molding the flow of waves on subwavelength scales

2011-12-12

arxiv.org/abs/1112.2536v1

Physics

Optics

Draft version, 15 pages, 4 figures

Scientific paper

In this letter we show that it is possible to merge the properties of metamaterials and photonic/phononic crystals. To do so, we demonstrate experimentally a defect cavity in a material made of resonant electric wires arranged on a lattice much smaller than the free space wavelength. We prove that such a cavity, analogous to those designed in photonic crystals, can present very high quality factors. Furthermore, we establish that the resonant state displays a mode volume much smaller than a wavelength cube, owing to the subwavelength nature of the unit cell. We also underline that this type of structure is not sensible to positional disorder. Our approach paves the way towards the manipulation of waves at scales independents of the wavelength.

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