Study of resistance against photorefractive light-induced scattering in LiNbO3:Fe,Mg crystals

In this paper, we report a new effect -- the threshold effect of incident light intensity for the photorefractive light-induced scattering in LiNbO3:Fe, Mg crystals, which could be used as a simple, effective technique to suppress the photorefractively light-induced scattering and is useful for us to get the noise-free photorefractive devices.