Abstract

Here, reciprocity and Babinet’s principles were applied to the design of integrated plasmonic structures on silicon photonic waveguides. Numerical analyses and near-field optical microscopy observations show that one of the hybrid photonic–plasmonic structures exhibits high confinement and enhancement of the electric field, and, through Babinet’s principle, the magnetic field of its complementary structure is confined and enhanced as well. Reciprocally, due to the modification of the electric and magnetic local density of states, enhanced emission of electric and magnetic dipoles by Purcell effect were obtained into specific silicon photonic modes. Such structures can be advantageously implemented for on-chip integrated single-photon sources.

© 2018 Optical Society of America

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