We present Monte Carlo numerical calculations for the near-field and scattered diffuse intensities of p-polarized light incident upon a random Gaussian correlated surface. We observe that the near field is dominated by two evanescent waves of momentum parallel to the surface Qs and ∼−Qs that in turn produce oscillations in the near field. This is in agreement with a theoretical diagrammatic expansion in the spatial disorder that included the so-called fan diagrams. Our calculations, within a resolution larger than 4° in the scatter angle, do not show a sharp peak or even an extra contribution in the backward diffuse scattered intensity predicted by that theoretical expansion, however. At present, we cannot make any firm conclusions about this because we have to increase resolution and decrease statistical error to elucidate this point.
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