Large-Area Resonance-Tuned Metasurfaces for On-Demand Enhanced Spectroscopy

Figure 1

SEM images of a quartz mold of hexagonal array of pillars. (a) Oblique view: white scale indicates 100 nm. (b) Top view: white scale indicates 1 μm. The periodicity is 410.5 nm and the diameter of pillars is 200 nm at the top.

(a)

(b)