Surface wave modes in single-negative metamaterials fibers

The features of surface wave modes in the fiber composed of single-negative (SNG) metamaterials have been investigated. The geometric and frequency dispersion of surface wave modes in SNG fibers are considered. The dispersion curves, energy flux and power of lower-order ( m =0,1) surface wave modes are presented. Some interesting properties, such as totally backward or forward wave, zero power, sign-varying energy flux in the core or cladding region, single mode operation, are found.