Memory effect in the glass transition region of silicate glass based on light scattering data

The experimental results of the changes of the visible light scattered intensity after temperature jumps in the glass transition region of silicate glass were presented. The influence of the thermal prehistory on the height and location of the scattered intensity maximum was studied. The conditions corresponding to the maximum value of the scattered intensity were determined. The non-monotone character of the dependence of the limit height of the maximum as a function of the stabilization temperature was obtained. It was shown that the relaxation times of the increasing of the intensity considerably exceeded the structural relaxation times. These features were similar to the results obtained for the phosphate glass earlier. The universal character of the non-linear coupling of the laser irradiation with the glass structure formed in the process of development of the maximum intensity was found.