%0 Journal Article %T Characterization of photorefractive undoped and doped sillenite crystals using holographic and photoconductivity techniques %A Frejlich, J %A Montenegro, R %A dos Santos, T O %A Carvalho, J F %J Journal of Optics A: Pure and Applied Optics %V 10 %N 10 %P 8 %@ 1464-4258 %D 2008-10-01 %~ DeepDyve