Physics – Condensed Matter – Materials Science
Scientific paper
2011-06-09
Physics
Condensed Matter
Materials Science
Scientific paper
This work presents a multiple scattering formulation of two dimensional acoustic metamaterials. It is shown that in the low frequency limit multiple scattering allows us to define frequency-dependent effective acoustic parameters for arrays of both ordered and disordered cylinders. This formulation can lead to both positive and negative acoustic parameters, where the acoustic parameters are the scalar bulk modulus and the tensorial mass density and, therefore, anisotropic wave propagation is allowed with both positive or negative refraction index. It is also shown that the surface fields on the scatterer are the main responsible of the anomalous behavior of the effective medium, therefore complex scatterers can be used to engineer the frequency response of the effective medium, and some examples of application to different scatterers are given. Finally, the theory is extended to electromagnetic wave propagation, where Mie resonances are found to be the responsible of the metamaterial behavior. As an application, it is shown that it is possible to obtain metamaterials with negative permeability and permittivity tensors by arrays of all-dielectric cylinders and that anisotropic cylinders can tune the frequency response of these resonances.
Sanchez-Dehesa Jose
Torrent Daniel
No associations
LandOfFree
Multiple Scattering Formulation of Two Dimensional Acoustic and Electromagnetic Metamaterials does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Multiple Scattering Formulation of Two Dimensional Acoustic and Electromagnetic Metamaterials, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multiple Scattering Formulation of Two Dimensional Acoustic and Electromagnetic Metamaterials will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-580383