Integrated optical waveguide utilizing zinc oxide diffused into
congruent and magnesium oxide doped lithium niobate crystals
    1.
    发明授权
    Integrated optical waveguide utilizing zinc oxide diffused into congruent and magnesium oxide doped lithium niobate crystals 失效
    使用氧化锌的集成光波导扩散到掺杂铌酸锂的铌酸锂晶体中

    公开(公告)号:US5095518A

    公开(公告)日:1992-03-10

    申请号:US566153

    申请日:1990-08-10

    IPC分类号: G02B6/134

    CPC分类号: G02B6/1342

    摘要: An integrated optical waveguide is constructed from a lithium niobate (LiNbO.sub.3) crystal substrate. In preferred embodiments, a diffused layer is formed proximate to one surface of the substrate by sputtering a thin layer of a zinc-related oxide (e.g., ZnO, ZnLiNbO.sub.4, or the like) onto the surface and then annealing the substrate. The resulting concentration of zinc in the diffused layer forms a waveguide having desirable optical propagation characteristics. The substrate is preferably congruent lithium niobate. In particularly preferred embodiments, the substrate is magnesium oxide (MgO) doped lithium niobate.

    摘要翻译: 集成光波导由铌酸锂(LiNbO 3)晶体基板构成。 在优选实施例中,通过将锌相关氧化物(例如ZnO,ZnLiNbO 4等)的薄层溅射到表面上,然后对衬底进行退火,在衬底的一个表面附近形成扩散层。 所得到的扩散层中锌的浓度形成具有理想的光传播特性的波导。 所述底物优选是一致的铌酸锂。 在特别优选的实施方式中,衬底是掺杂了氧化镁(MgO)的铌酸锂。

    Endless wire saw having material recovery capability
    3.
    发明授权
    Endless wire saw having material recovery capability 失效
    无极线锯具有材料回收能力

    公开(公告)号:US4766875A

    公开(公告)日:1988-08-30

    申请号:US671063

    申请日:1984-11-13

    IPC分类号: B23D57/00 B28D1/02 B28D1/08

    CPC分类号: B23D57/0046 B28D1/025

    摘要: An endless wire saw in which a workpiece is placed in pressure engagement with the wire and a cutting material carried by the wire slices through the workpiece. The cutting material may be a slurry such as a glycerin fluid carrying silicon carbide particles.

    摘要翻译: 一种环形线锯,其中工件与线材压力接合,并且由线材承载的切割材料切割通过工件。 切割材料可以是诸如携带碳化硅颗粒的甘油流体的浆料。

    Electrodeposition of molten silicon
    4.
    发明授权
    Electrodeposition of molten silicon 失效
    熔融硅电沉积

    公开(公告)号:US4292145A

    公开(公告)日:1981-09-29

    申请号:US149567

    申请日:1980-05-14

    IPC分类号: C25B1/00

    CPC分类号: C25B1/006

    摘要: Silicon dioxide is dissolved in a molten electrolytic bath, preferably comprising barium oxide and barium fluoride. A direct current is passed between an anode and a cathode in the bath to reduce the dissolved silicon dioxide to non-alloyed silicon in molten form, which is removed from the bath.

    摘要翻译: 将二氧化硅溶解在熔融电解浴中,优选包含氧化钡和氟化钡。 在浴中的阳极和阴极之间通过直流电流以将溶解的二氧化硅减少成熔融形式的非合金化硅,其从浴中除去。