Figure 4

EF distributions obtained from DDA calculations for AgNR 2D hexagonal arrays of different structures with AR = 3.5: (a) S42, (b) S0:42, (c) S−42:42, (d) S0:−42:42. The colour bar is at log scale. The excitation wavelength is 632.8 nm and the polarization is parallel to the y-direction. All internal fields are set to 0.01 for visual clarity.

© De Gruyter