High-resolution intra-volume coloring of metal-doped glass Available to Purchase

In the frame of glass decorative applications, precipitation of metallic nanoparticles in glass by laser processing is nowadays a well-known technique which allows 3D intra-volume glass coloring with high-resolution patterning into bulk glass. The color variation is obtained by simply varying the laser and process parameters, as the cumulative energy deposited in the glass volume. In this work, the samples obtained at different process parameters were characterized by measuring the absorption coefficient in the visible spectrum by a spectrophotometer. Results show that the absorption coefficient increases with the cumulative energy deposited in the glass: at higher values of fluence per pulse and number of scans, the colorization appears more intense. Finally, the process is optimized in order to minimize the resolution of the intra-volume patterning.