Abstract

Field-assisted ion exchange has been used to extend the profile repertoire and to speed the ion exchange process for gradient-index (GRIN) applications. Profiles are predicted for various ion mobility ratios and time-varying electric fields. Profile control is demonstrated by silver for sodium exchange in an aluminosilicate glass. Diffusion depths of the order of a millimeter are obtained in a few hours using modest field strengths.

© 1985 Optical Society of America

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