Plasmonic microstructured optical fibers

Placing large aspect-ratio nanowires made from metals into fibers leads to new application areas of optical fibers. Using our pressure-assisted melt-filling approach various hybrid fibers have been fabricated by filling the air holes of photonic crystal fibers with materials such as noble metals, semiconductors, fluids or low-melting compound glasses. In this talk I will review our latest results on plasmonic molecule formation by hybridization of spiralling plasmons on metallic nanowires, experimentally measured near field distributions of plasmonic supermodes and plasmonic hot-spot generation using nanotip fibers. I will also discuss plasmonic-photonic band gap generation and geometric plasmonic momenta emerging in the case of the curved metal surfaces.