Characterzation of Barium Titanate Single crystal by Dynamic Light-induced Absorption

In this report, the photorefractive properties in barium titanate() crystal are associated with the concentration variation. Not only the change of the shallow concentration can be estimated through the light-induced absoption, but the relation between oxygen partial pressure also. A correlation between measurement of photoconductivity and light-induced absorption yields the concentration variation is a function of oxygen partial pressure. Otherwise, the wavelength dependent photorefractive properties of the are investigated and discussed.