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1 May 2012 Metal-dielectric metamaterials for guided optics applications
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We investigate the potential of metallic metamaterials (MM) for integrated optic applications in the near-infrared (λ=1.5μm). Specifically we consider a composite guiding structure made of a MM layer over a high index slab waveguide such as silicon. In this configuration only the evanescent tail interacts with the MM layer which acts essentially as a perturbation. Our numerical simulations show that an array of gold coupled cut wires over a slab waveguide leads to a significant variation of the slab effective index in the vicinity of the resonance and thus can serve as building blocks for implementing optical functions. This geometry is compatible with current nano-fabrication technologies.
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A. Lupu, N. Dubrovina, R. Ghasemi, A. Degiron, and A. de Lustrac "Metal-dielectric metamaterials for guided optics applications", Proc. SPIE 8423, Metamaterials VII, 842306 (1 May 2012);

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