Electric near field measurements and electromagnetic simulations of a bianisotropic metamaterial composed of split ring resonator (SRR) particles

Hakeim Talleb (1) , Zine Eddine Djeffal (1) , David Lautru (1) , Abdelwaheb Ourir (2) , Victor Fouad Hanna (1)

1 L2E - Laboratoire d'Electronique et Electromagnétisme
2 IL - Institut Langevin - Ondes et Images (UMR7587)

In this paper, we confirm that a structure composed only of split ring resonator (SRR) particles can produce backward waves. We present numerical and experimental results for electric near fields that give rise to the backward-wave behaviour. This phenomenon is expressed by an effective wavelength λ eff higher than λ. This structure behaves as a bianisotropic metamaterial when the SRRs reduce simultaneously to electric and magnetic dipoles. We show that the produced asymmetric current distribution in such configuration leads to a backward-wave behaviour. An extraction method based on a homogenization procedure shows a good concordance of the index of refraction between the experimental and simulation results. This method is used to quantify the magnetoelectric parameter.

Domaines: Electromagnétisme

Hakeim Talleb, Zine Eddine Djeffal, David Lautru, Abdelwaheb Ourir, Victor Fouad Hanna. Electric near field measurements and electromagnetic simulations of a bianisotropic metamaterial composed of split ring resonator (SRR) particles. Applied physics. A, Materials science & processing, 2012, 109 (3), pp.693 - 698. ⟨10.1007/s00339-012-7102-4⟩. ⟨hal-00727808⟩