Negative phase advance in polarization independent, multi-layer negative-index metamaterials
Date
2008
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Abstract
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. ©2008 Optical Society of America.
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Optics Express
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Optical Society of American (OSA)
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Computer simulation, Materials science, Measurements, Polarization, Production platforms, Backward wave propagation, Effective parameters, Left-handed (CRLH) transmission, Metamaterial (MM), Metamaterials (MTM), Multilayer (ML), Negative permeability, Negative permittivity, Negative phase, Negative-index, Numerical simulations, Polarization independent, Retrieval (MIR), Single layers, Transmission measurements, Electronic equipment, Light, Materials testing, Methodology, Optics, Radiation scattering, Rrefractometry, Theoretical model
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Language
English