Fig. 2From: Spatial localization of hotspots in Fano-resonant plasmonic oligomers for surface-enhanced coherent anti-Stokes Raman scatteringTuning of Fano resonance in the quadrumer a by varying a while keeping d = 15 nm and h = 40 nm; b by varying d while keeping a = 80 nm and h = 40 nm; c by varying h while keeping a = 80 nm and d = 15 nm. Tuning of Fano resonance in the heptamer d by varying a while keeping d = 15 nm and h = 40 nm; e by varying d while keeping a = 60 nm and h = 40 nm; f by varying h while keeping a = 60 nm and d = 15 nmBack to article page