Figure 3

(a) Propagation length (L), (b) normalized mode area (Aeff /A0) and (c) figure of merit (FoM) vs. diameter of Si nanowire cylinder (d) under different gap heights of the wedge hybrid THz waveguide. The wedge tip angle is 100 deg.

(a) Propagation length (L), (b) normalized mode area (Aeff /A0) and (c) figure of merit (FoM) vs. diameter of Si nanowire cylinder (d) under different gap heights of the wedge hybrid THz waveguide. The wedge tip angle is 100 deg.