Negative refractive index response of weakly and strongly coupled optical metamaterials

94Citations
Citations of this article
89Readers
Mendeley users who have this article in their library.
Get full text

Abstract

We present a detailed study of the retrieved optical parameters, electrical permittivity ε, magnetic permeability μ, and refractive index n of the coupled-fishnet metamaterial structures as a function of the separation between layers. For the weak-coupling case, the retrieved parameters are very close to the one-functional-layer results and converge relatively fast. For the strong-coupling case, the retrieved parameters are completely different from the one-unit fishnet results. We also demonstrate that the high value of the figure of merit [FOM= | Re (n) /Im (n) |] for the strongly coupled structures is due to the fact that the real part of the negative n moves away from the maximum of the imaginary part of n (close to the resonance), where the losses are high. © 2009 The American Physical Society.

Cite

CITATION STYLE

APA

Zhou, J., Koschny, T., Kafesaki, M., & Soukoulis, C. M. (2009). Negative refractive index response of weakly and strongly coupled optical metamaterials. Physical Review B - Condensed Matter and Materials Physics, 80(3). https://doi.org/10.1103/PhysRevB.80.035109

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free