Broadband negative refraction in stacked fishnet metamaterial

Details Broadband negative refraction in stacked fishnet metamaterial Broadband negative refraction in stacked fishnet metamaterial

2010-08-07

arxiv.org/abs/1008.2106v1

Physics

Optics

8 pages, 4 figures

Scientific paper

We demonstrate a scheme to utilize the stacked fishnet metamaterial for all-angle negative refraction and subwavelength imaging within a wide frequency range starting from zero frequency. The theoretical predictions are verified by the finite-difference-in-time-domain (FDTD) numerical simulations. The phenomena come from the negative evanescent coupling between the adjacent slab waveguides through the breathing air holes perforated on metal layers.

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