https://www.frontiersin.org/journals/physics/articles/10.3389/fphy.2020.582692/full
Frontiers | Broadband and High-Efficiency Excitation of Spoof Surface Plasmon Polaritons Through...
Spoof surface plasmon polaritons (SPPs) are highly localized surface waves that can be supported on metal surfaces with subwavelength decorations. Mode match...
spoof surface plasmonhigh efficiency