Abstract
BaTiO 3 crystals are important photorefractive materials due to their self-pumped phase-conjugation and large electro-optic coefficient. High gain, fast response time and proper beam fanning BaTiO 3 crystals are desirable. We fabricated photorefractive BaTiO 3:Ru single crystals and then investigated their optical and photorefractive properties. In as-grown Ru-doped BaTiO 3 single crystals, the absorption shoulder is around 450 nm. The dark conductivity is dominant in the crystal and much higher than the photo conductivity at a low intensity pumping beam.
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