Figure 5
NZFS of a single-layered core-shell nanoparticle.
(a) Scattering spectra of the first three electric a1, a2, a3 (solid curves) and the first three magnetic b1, b2, b3 (dashed curves) multipolar contributions calculated for a core-shell nanosphere with a silver core of radius Rin = 80 nm and a dielectric shell of thickness t = 50 nm. (b) BS efficiency (olive curve), FS efficiency (wine curve) and the ratio of the BS efficiency to the FS efficiency (magenta curve) versus the incident wavelengths. Marked points F1 and F2 indicate two FS efficiency minima located at the wavelengths of λ = 600 nm and λ = 654 nm, respectively. Marked points S1 and S2 indicate the wavelengths of λ = 595 nm and λ = 495 nm, respectively, where the BS/FS ratio reaches maximum values. (c) Real and imaginary parts of the Mie term 3(a1 + b1) + 5(a2 + b2). (d) 2D scattering patterns calculated at the wavelength of λ = 595 nm, corresponding to the marked point S1 in (b).
