Figure 4
From: Broadband diffusion of terahertz waves by multi-bit coding metasurfaces
Designs of the Minkowski coding particles. (a) The available phase coverage for the Minkowski loop in the frequency range from 0.5 to 1.7 THz. (b) The dependence of the phase on the loop width L with fixed dimensions Λ = 90 μm, w = 5 μm, g = 15 μm, and Lin = 33 μm. (c) The designed 1-, 2-, and 3-bit coding particles using different-scale Minkowski loops.
