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Information × Registration Number 0213U004028, 0112U002938 , R & D reports Title Development of laser methods for forming composite plasmonic nanostructures popup.stage_title Head Snopok Borys Anatoliyovych, Registration Date 04-02-2013 Organization Institute of Semiconductor Physics of National Academy of Sciences of Ukrain popup.description2 Conditions were found and methods were developed for forming of porous aluminum oxide nanocomposite films with silicon or germanium nanoparticles by means of pulsed laser deposition of particles from reverse flux of erosion torch. Films contained amorphous phase Al2O3 according XRD data. By AFM methods it was revealed that the films had a wedge shape with sizes from 450 - 500 to ~ 100 nm at 12 mm length. Waveguide structure formed on the basis of these films were studied using total internal reflection in Krechmana's geometry. Approximation of experimental angular dependence of reflection allowed to determine that the effective refractive index value was in the range of neff = 1.38 - 1.65 and decreased with increase films porosity , and effective absorption coefficient were keff = 0.003 - 0.04. The possibility for achieving of considerable sensitivity of por-Al2O3 films formed by pulsed laser deposition under inert atmosphere to gaseous analytes was shown.5481 Product Description popup.authors Болтовець П.М. Каганович Е.Б. Кравченко С.О. Манойлов Е.Г. popup.nrat_date 2020-04-02 Close