High-sensitive holographic storage in Ce-doped SBN

DOI PDF 被引用文献4件
  • K. Megumi
    Central Research Laboratory, Hitachi Ltd., Kokubunji, Tokyo 185, Japan
  • H. Kozuka
    Central Research Laboratory, Hitachi Ltd., Kokubunji, Tokyo 185, Japan
  • M. Kobayashi
    Central Research Laboratory, Hitachi Ltd., Kokubunji, Tokyo 185, Japan
  • Y. Furuhata
    Central Research Laboratory, Hitachi Ltd., Kokubunji, Tokyo 185, Japan

説明

<jats:p>High optical sensitivity is observed in 0.1 wt% Ce-doped strontium barium niobate (SBN) crystals in the absence of an external electric field. Only 5–10 mJ/cm2 of incident 0.488-μm radiation is required to produce 10% diffraction efficiency, while the energy to erase holograms from the 80% to its 1/e diffraction efficiency level is 30–40 mJ/cm2 at the same wavelength. Holograms stored in Ce-doped SBN persist at least one month (decay time constant) if kept in the dark at room temperature.</jats:p>

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