Simulation of metamaterials negative refractive index

Research on artificial structures have practically achieve what Victor Veselago predicted in the 70s, namely engineering permeability and permittivity, which made both simultaneously negative, make possible the existence of effects negative refractive. John Pendry mentioned the possibility of making perfect lens using a flat layer of material left-hand whose relative permittivity and permeability equal to -1 must be able to focus a point source with perfect resolution. In his demonstration, Pendry capital shows the importance of the evanescent waves in this property, these waves undergoing amplification in the left hand material, breaking the Rayleigh limit / 2. Here we are in the field of metarnaterials characterized by a structure largely under -wavelength. we present the results obtained for the determination of all possible operating points, seeking the band gaps can TE and TM and the band gaps in a common two-dimensional periodic structure of triangular air holes in a dielectric with a refractive index n = 3.26.