Fig. 7.

Comparison of the dipole resonance frequencies derived from the experimental data [10, 48, 71] and from the present work (closed circles) for gold nanosphere embedded (a) in water (n _out = 1.33) and (b) in immerse oil (n _out = 1.5) with ${\omega }_{l=1}^{\prime }\left(R\right)$ calculated for different models of the dielectric function; dashed lines: for ε _Di(ω, R); solid lines: for ε ^(Au)(ω, R)