Double-element metamaterial with negative index at near-infrared wavelengths

Ekaterina Pshenay-Severin, Uwe Hübner, Christoph Menzel, Christian Helgert, Arkadi Chipouline, Carsten Rockstuhl, Andreas Tünnermann, Falk Lederer, Thomas Pertsch

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)

Abstract

We present the realization of a metamaterial that combines double cut wires and continuous wires in its unit cell. This double-element geometry together with the applied layer-by-layer fabrication technique permits an independent tuning of the geometry of the unit-cell components. The characterization of the samples is based on the measurement of transmission and reflection spectra combined with rigorous numerical simulations. The results show that the metamaterial exhibits an effective refractive index of n=-0.5+1.9i at the wavelength λ=2.1 μm.

Original languageEnglish
Pages (from-to)1678-1680
Number of pages3
JournalOptics Letters
Volume34
Issue number11
DOIs
Publication statusPublished - 1 Jun 2009
Externally publishedYes

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