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In this paper, surface plasmons polariton propagation and manipulation is reviewed in the context of experiments and modeling of optical images. We focus our attention in the interaction of surface plasmon polaritons with arrays of micro-scatereres and nanofabricated structures. Numerical simulations and experimental results of di®erent plasmonic devices are presented. Plasmonic beam manipulation opens up numerous possibilities for application in biosensing, nanophotonics, and in general in the area of surface optics properties.

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By means of pulsed laser deposition we prepared Co–Ni/p-Si thin films upon a Si(100) substrates. Samples were thermally treated in vacuum in order to promote silicide formation. From X-ray photo-electron spectroscopy (XPS) analysis, we detected chemical shifts of the Co2p and Ni2p transitions, characteristic of silicide binding energy, at the respective ranges of 778.3–778.6 and 853.2–853.6 eV. By means of high resolution transmission electron microscopy (HRTEM) we identified some nanocrystalline regions belonging to CoSi 2, Ni 2 Si and NiSi 2 structures. We also appreciate that the resulting films are of a polycrystalline nature.

In this work, a set of titanium nitrides thin-films was synthesized with the technique of reactive RF and DC magnetron-sputtering. To demonstrate the versatility and effectiveness of the deposition technique, thin films were deposited onto different fiber structures varying the deposition parameters for optical applications as saturable absorbers in passively q-switched fiber lasers and as lossy mode resonance fiber refractometers. After deposition, optical and electronical properties of samples were characterized by UV–Vis and XPS spectroscopies, respectively. Samples presented coexisting phases of Ti nitride and oxide, where the nitride phase was non-stoichiometric metallic-rich, with a band gap in the range of Eg = 3.4–3.7 eV. For all samples, glass substrates were used as templates, and on top of them, optical fibers were mounted to be covered with their respective titanium compounds.