Figure 1

Figure 1: Inhomogeneous localization of nanoplasmonic eigenmodes. (a) Calculated local optical fields inside a fractal nanocluster made of silver nanospheres. Insert: geometry of such a cluster. (b) Surface plasmon eigenmodes for a semicontinuous metal nanofilm plotted against their oscillator strength and localization radius. The yellow background marks the bright (luminous) eigenmodes, the blue background highlights the strongly localized eigenmodes. (Adapted from Ref. [10]). (c) Schematic of experimental observation of the surface plasmon local fields. (From Ref. [3]). (d) Measured normalized variance of the decay rates of the dye molecule fluorescence. (From Ref. [3]). The red dashed vertical line qualitatively shows the onset of the significant fractality of the underlying metal clusters.