Silver nanoclusters have been formed in light waveguides obtained by Ag-Na ion-exchange process in glass, by either irradiating with low-mass ion beams or by heating in hydrogen atmosphere at temperatures varying in the range 100 - 250 C. Metal nanocluster-silica composites have been also obtained by the sol-gel technique. Nanocluster modifications induced by pulsed laser irradiation have been investigated, and annealing behavior of nanoclusters synthesized by the sol-gel has been studied. Composites were characterized by Secondary Ion Mass Spectrometry and Rutherford Backscattering Spectrometry, in order to determine concentration depth-profiles, and by Transmission Electron Microscopy for the nanocluster detection and size evaluation. Optical analyses were performed to evidence linear and nonlinear properties.
Formation of metal nanoclusters in silicate glasses for nonlinear optical applications
SPIZZO, Federico;
1996
Abstract
Silver nanoclusters have been formed in light waveguides obtained by Ag-Na ion-exchange process in glass, by either irradiating with low-mass ion beams or by heating in hydrogen atmosphere at temperatures varying in the range 100 - 250 C. Metal nanocluster-silica composites have been also obtained by the sol-gel technique. Nanocluster modifications induced by pulsed laser irradiation have been investigated, and annealing behavior of nanoclusters synthesized by the sol-gel has been studied. Composites were characterized by Secondary Ion Mass Spectrometry and Rutherford Backscattering Spectrometry, in order to determine concentration depth-profiles, and by Transmission Electron Microscopy for the nanocluster detection and size evaluation. Optical analyses were performed to evidence linear and nonlinear properties.I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
