Aluminum-boro-silicate glasses for ion exchange: Characterization and influence of diffusion non-linearity

Diffusion non-linearity of a set of aluminum-boro-silicate glasses with a high content of alkaline ions and fast diffusion was analyzed using the developed approach for the comparison and selection of glasses for the formation of GRIN structures. The results of this study allowed simple governing of the diffusion non-linearity of glasses by varying their composition. The technique proposed was verified through synthesizing glasses with diffusion non-linearity falling into the range where low-aberration GRIN lenses could be formed in one-stage ion exchange processing.