Figure 3
From: On the Large Near-Field Enhancement on Nanocolumnar Gold Substrates
Simulated electromagnetic near-field enhancement maps at the substrate surface. Panels (a,c,e) show the results for the Au10 sample at wavelengths of 532, 633, and 785 nm, respectively. Panels (b,d,f) correspond to the Au20 sample at the same wavelengths. The incident light is polarised in the longitudinal direction of the columns (Ex). The white scale bar is 200 nm.
