Numerical simulations of negative-index refraction in wedge-shaped metamaterials
Optics
2007-05-23 v1 Computational Physics
Abstract
A wedge-shaped structure made of split-ring resonators (SRR) and wires is numerically simulated to evaluate its refraction behavior. Four frequency bands, namely, the stop band, left-handed band, ultralow-index band, and positive-index band, are distinguished according to the refracted field distributions. Negative phase velocity inside the wedge is demonstrated in the left-handed band and the Snell's law is conformed in terms of its refraction behaviors in different frequency bands. Our results confirmed that negative index of refraction indeed exists in such a composite metamaterial and also provided a convincing support to the results of previous Snell's law experiments.
Keywords
Cite
@article{arxiv.physics/0508067,
title = {Numerical simulations of negative-index refraction in wedge-shaped metamaterials},
author = {Z. G. Dong and S. N. Zhu and H. Liu and J. Zhu and W. Cao},
journal= {arXiv preprint arXiv:physics/0508067},
year = {2007}
}
Comments
18 pages, 6 figures