Figure 2
BS efficiency evolution of a core-shell nanoparticle with different core sizes.
(a) Contour plot of the BS efficiency as a function of the incident wavelength and the core radius. The shell thickness is fixed to t = 190 nm. Dark-greyish colored area represents low BS efficiency less than 0.02. Marked points A (Rin = 38 nm, λ = 705 nm) and B (Rin = 38 nm, λ = 776 nm) define a 70-nm-wide ZBS in the horizontal dimension. Marked points C (Rin = 36 nm, λ = 712 nm) and D (Rin = 46 nm, λ = 712 nm) define a 10-nm-wide ZBS in the vertical dimension. (b) BS (olive curve) and FS (wine curve) efficiencies versus the incident wavelengths for a core-shell nanoparticle with a core radius of Rin = 38 nm and a shell thickness of t = 190 nm, corresponding to the special case indicated by a horizontal dashed line in (a). (c) BS (olive curve) and FS (wine curve) efficiencies versus the core radius are shown at the incident wavelength of λ = 712 nm, corresponding to the special case indicated by a vertical dashed line in (a).
