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We consider emitting nanoparticles in dielectric nanocomposites with varyingrefractive index contrast and geometry. For that we develop a simple anduniversal method to calculate the emission enhancement in nanocomposites thatemploys solely the calculation of the effective refractive index and electricfield distributions from three quasistatic calculations with orthogonalpolarizations. The method is exemplified for dilute nanocomposites withoutelectromagnetic interaction between emitting particles as well as for densenanocomposites with strong particle interaction. We show that the radiativedecay in dielectric nanocomposites is greatly affected by the shape andarrangement of its constituents and give guidelines for larger enhancement.

Emission enhancement in dielectric nanocomposites