Ultrahigh efficiency plasmonic mode conversion between symmetric and antisymmetric modes in metal slab waveguides by introducing a gyration-managed waveguide linkRemoveKum-Song Ho, Ji-Song Pyon, Jin-Song Kim, Song-Jin Im, Kum-Dong Kim, Kil-Song Song, Ji-Song Pae, and Chol-Song RiPhys. Rev. B 109, L041402 (2024)