Experimental Verification of a Negative Index of Refraction

@article{Shelby2001ExperimentalVO,
  title={Experimental Verification of a Negative Index of Refraction},
  author={Richard A. Shelby and D. Robert Smith and Sheldon Schultz},
  journal={Science},
  year={2001},
  volume={292},
  pages={77 - 79}
}
We present experimental scattering data at microwave frequencies on a structured metamaterial that exhibits a frequency band where the effective index of refraction (n) is negative. The material consists of a two-dimensional array of repeated unit cells of copper strips and split ring resonators on interlocking strips of standard circuit board material. By measuring the scattering angle of the transmitted beam through a prism fabricated from this material, we determine the effective n… 

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