Hyperbolic spoof plasmonic metasurfaces

• DOI: 10.1038/am.2017.158
• Publication Date: 2017-08-25T06:02:25Z
• Authors: Yihao Yang; Liqiao Jing; Lian Shen; Zuojia Wang; Bin Zheng; Huaping Wang; Erping Li; Nian-Hai Shen; Thomas Koschny; Costas M Soukoulis; Hongsheng Chen
• Keywords: Negative Refraction

Metasurfaces, with intrinsically planar nature and subwavelength thickness, provide us unconventional methodologies to not only mold the flow of propagating waves but also manipulate near-field waves. Plasmonic metasurfaces topological transition for controlling surface plasmon polaritons (SPPs) recently have been experimentally demonstrated, which, however, are limited optical frequencies. In this work, we proposed characterized an ultrathin metasurface manipulating spoof SPPs at low frequency. We demonstrated rich interesting phenomena based on metasurface, including frequency-dependent spatial localization, non-diffraction propagation, negative refraction, dispersion-dependent spin-momentum locking SPPs. Comparing traditional three-dimensional metamaterials, our exhibits propagation loss compatibility photonic integrated circuit, which may find plenty applications in multiplexers, focusing imaging devices, hyperlens, directional couplers, microwave terahertz