Fig. 13

Results for sinusoidal topographies. Representative results, characterized by height H and length λ, for incidence angle 10 degrees (left), 20 degrees (middle) and 30 degrees (right). The values of H and lambda are as follows: a) λ = 0.5, H = 0.5, b) λ = 1.0, H = 1.0, c) λ = 1.5, H = 1.5, d) λ = 5, H = 2.5, e) λ = 10 H = 5