Abstract
A possibility of changes the non-linear optical response was shown for the first time in the BiFeO3 doped by the Eu and Nd materials synthesized by the sol-gel method. Grain size here plays a substantial role. At the same time the latter is responsible for the non-linear optical response. The photoinduced optics was performed by the Nd:YAG lasers of different powers for samples of different nanosizes. (C) 2014 Elsevier B.V. All rights reserved,