Photorefractive material
    1.
    发明授权
    Photorefractive material 失效
    光折射材料

    公开(公告)号:US06670079B1

    公开(公告)日:2003-12-30

    申请号:US09598222

    申请日:2000-06-21

    IPC分类号: G03H103

    CPC分类号: G11C13/045 G03H2260/54

    摘要: A photorefractive material provides a high photosensitivity without reduction. The material comprises a single crystal of terbium (Tb)-doped niobate or tantalate. The single crystal is a single crystal of lithium niobate (LiNbO3) whose molar fraction of [Li2O]/([Li2O]+[Nb2O5]) lies in a range of 0.482 to 0.505, or a single crystal of lithium tantalate (LiTaO3) whose molar fraction of [Li2O]/([Li2O]+[Ta2O5]) lies in a range of 0.482 to 0.505. The amount of terbium added in the photorefractive material ranges from 10 weight ppm to 1000 weight ppm.

    摘要翻译: 光折射材料提供高的光敏性而不会减少。 该材料包括铽(Tb)掺杂的铌酸盐或钽酸盐的单晶。 该单晶是其[Li 2 O] /([Li 2 O] + [Nb 2 O 5])的摩尔分数在0.482〜0.505的范围内的铌酸锂(LiNbO 3)的单晶,或者是钽酸锂(LiTaO 3)的单晶, [Li 2 O] /([Li 2 O] + [Ta 2 O 5])的摩尔分数在0.482〜0.505的范围内。 在光折射材料中添加的铽的量为10重量ppm至1000重量ppm。