Fig. S4.

(A) Scheme showing a superlattice deposited on a substrate (Left) and a top view showing three cross-sections whose excitation light intensity is analyzed. (B–D) FDTD-calculated scattering profiles ($\left|\overrightarrow{E}\right|$) of a microcavity with plane-wave injection. The cavity center is (x,y,z) = (0,0,0) and $\left|\overrightarrow{L}\right|$ = 5 µm, and the gold FF is 6%. The wavelength is λ = 505 nm, and only several locations (red circles) of dipoles are chosen, not including other equivalent locations considering the symmetry. The contributions from those equivalent locations were added by reusing the calculated intensity from chosen locations (red circles).