THE INFLUENCE OF PHOTO-INDUCED REFRACTIVE INDEX CHANGE ON RAMAN SPECTRA OF LiNbO3: Fe CRYSTALS

Abstract
Obvious anomalous phenomenon in Raman spectrum of LiNbO3:Fe crystals for some scattering geometry has been observed. The phenomenon is associated with the anomalous light scattering process occured after photo-induced refractive index change in crystals.