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Chalcogenide glasses have nonlinear refractive indices ∼200 times greater than fused silica, and offer windows of transparency extending far into the mid-IR. These properties make them interesting for supercontinuum (SC) generation at wavelengths beyond 2 μm. Various different waveguiding structures incorporating chalcogenide glasses have been reported in literature, including microstructured fibers...
We present a novel technique for realizing hybrid all-solid band-gap-guiding fibers [1] using chalcogenide and fused silica glass. The high refractive index contrast between the two materials gives rise to the formation of distinct band-gaps and pass-bands, resulting in a sequence of transmission bands at different wavelengths.
Photonic crystal fibers (PCFs) consist of arrays of micrometer-size hollow channels extending along the entire fiber length. A new approach to modify the optical properties and to improve the design flexibility of such fibers is to fill the air holes of the array by with different materials, realizing all-solid hybrid fiber structures. In this talk, recent results on silica PCF filled with noble metals,...
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