Abstract
The classical electromagnetic model for surface-enhanced Raman scattering has been extended to include the dipole-dipole interaction of molecules adsorbed at the surface of a sphere with the intention of elucidating the effect of submonolayer surface coverage. Numerical results for 10-, 50-, and 100-nm-radius silve particles show about a 15% decrease of the Raman signal as the dipoles on a silver sphere (in water) approach each other.
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