Anomalous surface-wave guiding on omega-bianisotropic metasurfaces

We introduce a novel concept for anomalous surface-wave (SW) guiding on penetrable omega-bianisotropic metasurfaces, designed to guide a pair of SWs on each of their facets. The eigenmode is thus a quadruple of SWs, exchanging power via the metasurface while propagating along it. Full-wave simulations verify that these eigenmodes can be efficiently excited by a localized source, and the SW interference allows intricate manipulation of near-field features, holding potential for wireless power transfer and biomedical imaging applications.