HIGH-SENSITIVITY HOLOGRAPHIC STORAGE IN Ce-DOPED STRONTIUM-BARIUM NIOBATE AT 632.8nm

We report the high-sensitivity holographic storage in Ce-doped SBN with a low power CW He-Ne laser. A maximum index change Δn_max = 1.07x10^-4 a photorefractive sensitivity S=7.9 x10^-4 cm²/J, and a maximum diffraction efficiency η=78% were obtained. The optical readout characteristics of holograms recorded by the sample were also studied.