Experimental demonstration of negative index of refraction

By Jiangfeng Zhou, Thomas Koschny, Lei Zhang, G. Tuttle, Costas M. Soukoulis. 2006

184 citations recorded by the source corpus.

We introduce an improved and simplified structure made of periodic arrays of pairs of H-shaped metallic wires that offer a potentially simpler approach in building negative-index materials. Using simulations and microwave experiments, we have investigated the negative-index n properties of these structures. We have measured experimentally both the transmittance and the reflectance properties and found unambiguously that a negative refractive index with Re(n)<0 and Im(n)<Re(n). The same is true for e and μ. Our results show that H-shaped wire pairs can be used very effectively in producing materials with negative refractive indices.

Subfields: Aerospace Engineering, Biomedical Engineering, Electronic, Optical and Magnetic Materials

View Paper: https://www.semanticscholar.org/paper/89594ff436486786bfd217c3558a9ebd16cb61aa

Citations in the corpus

• MULTI-BAND AND POLARIZATION INSENSITIVE METAMATERIAL ABSORBER (2011, unknown): “carried out in three steps: Step I: we measured a ground copper plane with the dimension the same as the sample [22], we record S21 and use the result as measurement reference; Step II: we measured the sample of the metamaterial absorber and record the S21 parameters; Step III: we repeat Steps I and”