560
V. N. Pustovit and T. V. Shahbazyan
(a)
(b)
(c)
Fig. 15.17 FRET for N = 100 donors on top of spherical core-shell NP with Ag core radius
R c = 30 nm and SiO 2 shell thickness 40 nm (a), 60 nm (b), and 80 nm (c) with acceptor at d = 10 nm
from NP surface. Full calculations for two sets of donors and acceptors with their emission and
absorption bands tuned to dipole and high-l SP resonances are compared to independent donors
approximation.
FRET and of FRET from independent donors with increasing shell thickness show
opposite trends: the normalized cooperative FRET increases for thicker shells while
energy transfer from independent donors is reduced (see Fig. 15.17).