SLOW MICROWAVE WAVEGUIDE MADE OF NEGATIVE PERMEABILITY METAMATERIALS

The framework for designing a slow light waveguide structure which operates in the GHz and up to THz frequencies is outlined. The design for the structure consists of a dielectric core layer cladded with negative permeability, metamaterials. The parameter space for the metamaterial has been identified for the waveguide to stop light and the negative permeability, is achieved by, split-ring resonator (SRR) metallic elements. A prototype structure operating at 8.5 GHz is proposed. Numerical simulations of electromagnetic waves interacting with SRRs have been performed to extract scattering parameters and a parameter retrieval method has been used to verify the designed window for negative permeability. (C) 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 2705-2709, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24727