Research / 2018 / Article / Fig 3

Research Article

Broadband Negative Refraction of Highly Squeezed Hyperbolic Polaritons in 2D Materials

Figure 3

All-angle negative refraction of hyperbolic polaritons (a) at 10 THz and (b) at 20 THz. The other parameters are the same as that in Figure 1(c). The values of anisotropic surface conductivity for graphene metasurfaces are highlighted by grey dashed lines in Figure 2(a).