We investigate scattering of a silicon nanoparticle optically isolated from a silicon substrate by a silica layer. We observe characteristic Fabri-Perot behavior of scattering cross section with the increasing of the sublayer thickness. We show that we can independently suppress or enhance the scattering at frequencies of electric and magnetic dipole resonance. Setting a certain angle of incidence and the sublayer thickness, a polarization induced switching between electric and magnetic dipole is achieved. Finally, directivity of scattered radiation is investigated. Regimes with negative angle scattering, conical and upward radiation patterns are observed.

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