Physics – Classical Physics
Scientific paper
2001-11-28
Phys. Rev. B 65 (2002) 195104
Physics
Classical Physics
*.pdf file, 5 figures
Scientific paper
10.1103/PhysRevB.65.195104
We analyze the reflection and transmission coefficients calculated from transfer matrix simulations on finite lenghts of electromagnetic metamaterials, to determine the effective permittivity and permeability. We perform this analysis on structures composed of periodic arrangements of wires, split ring resonators (SRRs) and both wires and SRRs. We find the recovered frequency-dependent permittivity and permeability are entirely consistent with analytic expressions predicted by effective medium arguments. Of particular relevance are that a wire medium exhibits a frequency region in which the real part of permittivity is negative, and SRRs produce a frequency region in which the real part of permeability is negative. In the combination structure, at frequencies where both the recovered real part of permittivity and permeability are simultaneously negative, the real part of the index-of-refraction is found also to be unambigously negative.
Markos Peter
Schultz Sheldon
Smith Reginald D.
Soukoulis Costas M.
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