The split cube in a cage: bulk negative-index material for infrared applications

被引：10

作者：

Andryieuski, A. ^{[1
]}

Menzel, C. ^{[2
]}

Rockstuhl, C. ^{[2
]}

Malureanu, R. ^{[1
]}

Lavrinenko, A. V. ^{[1
]}

机构：

[1] Tech Univ Denmark, DTU Foton, Dept Photon Engn, DK-2800 Lyngby, Denmark

[2] Univ Jena, Inst Condensed Matter Theory & Solid State Opt, D-07743 Jena, Germany

来源：

JOURNAL OF OPTICS A-PURE AND APPLIED OPTICS | 2009年 / 11卷 / 11期

关键词：

negative-index material; bulk metamaterial; 3D metamaterial; effective homogeneity; REFRACTION; METAMATERIAL; MEDIA;

D O I：

10.1088/1464-4258/11/11/114010

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose the split cube in a cage (SCiC) design for application in producing a bulk metamaterial. Applying realistic material data for thin silver films, we observe an immediate convergence of the effective parameters obtained with a number of layers towards the bulk properties. Results are obtained by two different numerical techniques: the Fourier modal method and the finite integrals method, thus ensuring their validity. The SCiC exhibits a refractive index of -0.6 for frequencies close to the telecommunication bands. The fast convergence of effective parameters allows consideration of the SCiC as a bulk ( effectively homogeneous) negative-index metamaterial even for a single layer. The bulk-like nature together with the cubic symmetry of the unit cell make the SCiC a promising candidate for potential applications at telecommunication frequencies.

引用

页数：7

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