Luminescent properties of nanocomposites based on the doped nanoparticles and isolated coated nanoparticles

Here we present a summary of the theoretical studies of the emission rates modifications of emitter placed inside or near the subwavelength nanoparticle that are embedded in a medium. The change in spontaneous emission rate as a function of the effective refractive index of the nanocomposite, as well as on the refractive indices of NPs and the substance filling the space between them is presented. Both naked and coated nanoparticles are considered.