Figure 4.

(Color online) Reflectance as a function of x at y = 0 for illumination with incident angle θ_i = 45° and beam radius ρ = l*/2. SHEF_N results are provided for expansion order pairs [(2, 3); (6, 7); (10, 11)] and comparison is provided with Monte Carlo (MC) for strongly-scattering (${\mu }_s^{\prime }/{\mu }_a=100$) (left) and weakly-scattering (${\mu }_s^{\prime }/{\mu }_a=1$) (right) media. Also shown are the SOS solutions for each even-odd expansion order pair, and the insets show the relative errors of SHEF_N with respect to Monte Carlo.