Nanocrosses with Highly Tunable Double Resonances for Near-Infrared Surface-Enhanced Raman Scattering

Figure 2

(a) Extinction spectrum, (b) electric field intensity (|𝐸²|) spectrum at the point A (see Figure 1), (c) the on-resonance electric field distribution (Log|𝐸²|), and (d) surface charge distribution for a symmetric Au nanocross (120, 120) normally illuminated by a 𝜃=45^∘ polarized plane wave.