fig1
From: Photonic meta-crystals
Figure 1. The family of metamaterials and a schematic illustration of photonic meta-crystals. The diagram on the right presents a structural roadmap depicting the integration process and functional evolution of these metamaterials within photonic meta-crystals. LHM: Left-handed material; SNG: single-negative; ZIM: zero-index material; HMM: hyperbolic metamaterial; PMC: photonic meta-crystal.
