Spoof localized surface plasmons (LSPs) on a planar texturedmetallic disk are proposed and experimentally demonstrated in themicrowave frequency. The designed plasmonic particle shows clearlymultipolar plasmonic resonances, including the dipole, quadrupole, hexapole, octopole, decapole, dodeca-pole, and quattuordec-polemodes. The numerical simulations and experiments are in good agreements. The experimental realization of spoof LSPs on planar plasmonic metamaterial offers great practical advantages in the potential applications.
(Picture: Xiaopeng Shen and Tie Jun Cui 10.1002/lpor.201300144, pp. 137–145, in this issue)