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Fig. 5

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Comparison of the multiple scattered solution from the SEM (solid lines) and that from the perturbation method (dashed lines). Dotted lines represent the single scattered solution. Approximation I (non-domain-based PRD) is used for the SEM approach, while approximation II (2D angle-dependent frequency domains) is used in the perturbation method. Other model parameters are the same as in Fig. 3.

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