Fig. 2From: Enhancing Surface Plasmon Resonance Detection Using Nanostructured Au ChipsThe dependences of the reflection, R, on the angle of incidence, θ, for the standard Au sensor with flat surface (a) and Au gratings with a period of 296.6 ± 0.5 nm and average depth of relief of 13.5 ± 2 nm (b). Curve 1 corresponds to n = 1.3988, 2: n = 1.403, and 3: n = 1.4112Back to article page