Research Article

Integral Equation Analysis of EM Scattering from Multilayered Metallic Photonic Crystal Accelerated with Adaptive Cross Approximation

Figure 4

The relative error of a series of points. Reference structure: primitive vector , ; phase shifts , . Accuracy reached interpolating PGFs through trilinear interpolation, with a 3D grid of equispaced points in , , . The data plotted refers to the straight line from to . The number of equally spaced sampling points is 4.