Figure 4.

The dependence of the extinction spectra of two dielectric-core-gold-shell nanocylinder pairs on dimensions. (a) For different gap widths between the nanocylinders with the pair distance p of 20 nm, (b) for different pair-distances between the nanocylinder pairs with the gap width of 20 nm, (c) for different dielectric constant of the dielectric cores, (d) for different surrounding medium.

Lu et al. Nanoscale Research Letters 2011 6:173   doi:10.1186/1556-276X-6-173
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