Fig. 5: Impact of the gold nanoparticle on the photoluminescence polarization from distributed emitters.
a Sketch of the simulated nanoparticle-on-substrate geometry showing the position of the rotating electric dipole in a plane 15 nm below and displaced by a distance xe from the projected center of the GNP. The inset shows the calculated farfield radiation pattern of a rotating electric dipole pK, the color encodes the respective DOCP. b Top: Calculated angle-averaged farfield intensities \({{{\mathcal{I}}}}_{{\sigma }^{+}}^{K}\) (red line) and \({{{\mathcal{I}}}}_{{\sigma }^{-}}^{K}\) (blue line) emitted by an incoherent rotating dipole pK as a function of the displacement distance. Bottom: The corresponding DOCP (green curve) and total intensity (orange curve) of the integrated farfield. The farfield intensity is normalized to the intensity obtained without a GNP. Note that the results for a dipole with opposite spin, \({{{\bf{p}}}}_{K^{\prime} }\), can be obtained by exchanging the labels σ±, respectively. The shaded areas mark the size of the GNP.
