Abstract
A relation is obtained for the complex refractive index of an optical metamaterial, taking into account the structural factor that determines the discrete distribution of inclusions in the composite. It is shown that a small random change in the structure factor leads to a significant decrease in the refractive index of the metamaterial in a wide range of visible and IR wavelengths. The obtained theoretical results are confirmed by experiment on the example of a synthesized metamaterial from a polymer matrix with silver nanoparticles.
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