Issue 45, 2015

Equivalent energy-level structures in stacked metamaterials

Abstract

The unusual properties of metamaterials originate from their artificial metallic structures; however, these materials indeed behave as an effective medium in the operating frequency range. Correspondingly, the unit cell is called a meta-atom, but its relationship with real atoms has not been substantially studied. In this paper, we studied a stacked fishnet metamaterial in the optical frequency range and established a basic relationship between the meta-atom and the real atom. The characteristic frequency of meta-atoms behaves just as the energy level of real atoms, which splits with the stacked meta-atom number, converges with the atom spacing and is sensitive to the features of the center dielectric layer. This work will increase the understanding of metamaterial physics in view of solid-state physics and guide metamaterial design through quantum mechanical methods.

Graphical abstract: Equivalent energy-level structures in stacked metamaterials

Supplementary files

Article information

Article type
Paper
Submitted
13 9 2015
Accepted
21 10 2015
First published
22 10 2015

J. Mater. Chem. C, 2015,3, 11827-11832

Author version available

Equivalent energy-level structures in stacked metamaterials

C. Liu, Y. Bai, J. Zhou, Q. Zhao, Y. Yan, J. Li, Y. Su and L. Qiao, J. Mater. Chem. C, 2015, 3, 11827 DOI: 10.1039/C5TC02884A

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