Abstract

We demonstrate propagation losses of less than 0.8dBμm in a metal slot waveguide on silicon with a predicted confinement substantially below the optical wavelength (1.55μm). We also show compact and efficient coupling of the high-confinement metal slot waveguide with a standard silicon dielectric waveguide with a coupling efficiency of approximately 2.5dB per facet.

© 2006 Optical Society of America

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