Fig. 6
From: Loosely-bound low-loss surface plasmons in hyperbolic metamaterial
FDTD analysis of field distributions (H z , E y , and E x ) in a hyperbolic metamaterial/dielectric structure. The metamaterial side (y > 0) consists of Ag(10 nm)/SiO2(90 nm) alternating multilayers. a A homogeneous anisotropic dielectric tensor, calculated by an effective medium approximation, is assumed for the metamaterial part. b Isotropic dielectric constants of bulk Ag and SiO2 are assumed for the multilayer structure. c A close-up view of panel (b) near the interface (y = 0). Note that normal E-field (E y : green) is well suppressed in metal layers while remaining strong in dielectric layers. Also note that tangential E-field (E x ) remains low, implying that this surface-bound wave becomes more transverse-electromagnetic than transverse-magnetic