Figure 6
From: Highly anisotropic metasurface: a polarized beam splitter and hologram
Dispersion curves.
(a) Dispersion curves of the first-order longitudinal Bloch plasmonic waveguide modes in Al-air-Al slits for (a1) TM and (a2) TE light. The blue and red lines of various line types represent the real and imaginary parts of the wave vector kz for slit widths of 60 nm to 210 nm, respectively. The black solid line represents the light cone.
