Figure 8

Plasmon coupling in gold nanoparticle dimer. (a) Spectral position of the extinction maximum vs. interparticle distance for seven gold nanodisk pairs fabricated by electron-beam lithography. (From [88]) (b) Calculated fractional plasmon peak shift vs the ratio of interparticle gap to nanodisk diameter, showing that the scaled data points for the different disc sizes follow a common trend, which can be fit together to the single-exponential decay (solid curves) y = ae ^− x/τ with and τ = 0.23 ± 0.03 (From Ref. [95]).

Plasmon coupling in gold nanoparticle dimer. (a) Spectral position of the extinction maximum vs. interparticle distance for seven gold nanodisk pairs fabricated by electron-beam lithography (From [88]). (b) Calculated fractional plasmon peak shift vs the ratio of interparticle gap to nanodisk diameter, showing that the scaled data points for the different disc sizes follow a common trend, which can be fit together to the single-exponential decay (solid curves) y = ae ^− x/τ with and τ = 0.23 ± 0.03 (From Ref. [95]).