Negative phase advance in polarization independent, multi-layer negative-index metamaterials

Koray Aydin*, Li Zhaofeng, Levent Sahin, Ekmel Ozbay

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

47 Scopus citations


We demonstrate a polarization independent negative-index metamaterial (NIM) at microwave frequencies. Transmission measurements and simulations predict a left-handed transmission band with negative permittivity and negative permeability. A negative-index is verified by using the retrieval procedure. Effective parameters of single-layer and twolayer NIMs are shown to be different. Negative phase advance is verified within the negative-index regime by measuring the phase shift between different sized negative-index metamaterials. Backward wave propagation is observed in the numerical simulations at frequencies where the phase advance is negative.

Original languageEnglish (US)
Pages (from-to)8835-8844
Number of pages10
JournalOptics Express
Issue number12
StatePublished - Jun 9 2008

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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