Fig. 1From: Spatial localization of hotspots in Fano-resonant plasmonic oligomers for surface-enhanced coherent anti-Stokes Raman scatteringa Optimized design of the quadrumer with a = 80 nm; b Optimized design of the heptamer with a = 62.5 nm. In both a and b, d = 15 nm and h = 40 nm. The black arrows on the top of the designs present the polarization of the excitationBack to article page