Rigorous Coupled-Wave Analysis of Surface Plasmon Enhancement from Patterned Immobilization on Nanogratings

Figure 6

(a) Sensitivity for grating duty factor from 20%–80%. (b) SPR curves for increasing gold thickness (𝑡=5 to 40 nm) and for each thickness, an increasing grating height (ℎ=5 to 40 nm), as indicated by the arrow. (c) Sensitivity for gold layer thickness (𝑡) and grating height (ℎ).