Figure 4. Distributions of induced surface currents of the bilayered hybrid VO₂ metamaterial for y polarized incident wave at 1.4 THz.

(a,b) Surface currents of the front and back layers without thermal excitation. (i.e., corresponding to  = 200 S/m). (c,d) Surface currents of the front and back layers with thermal excitation (i.e., corresponding to  = 10⁵ S/m). The bold solid and dashed arrows indicate instantaneous directions of the current flow.