We numerically solve a diffusion-type equation for the accumulated interdiffusion coefficient in an interacting system (nonideal ion-exchange reaction) by using a modified Crank–Nicolson algorithm. We obtain exact and approximate index profiles in such a way that bump effects found in experimental ionic concentrations in glass are explained as a result of cation–cation interactions.
© 1997 Optical Society of America
[Optical Society of America ]
Jesús Liñares, K. Siva Rama Krishna, and Marí C. Nistal, "Graded-index profiles produced by ion exchange in an interacting system," Appl. Opt. 36, 6838-6842 (1997)