Magnetic film stripe domain diffraction
    1.
    发明授权
    Magnetic film stripe domain diffraction 失效
    磁性膜条纹衍射

    公开(公告)号:US3752563A

    公开(公告)日:1973-08-14

    申请号:US3752563D

    申请日:1971-09-01

    申请人: SPERRY RAND CORP

    发明人: TOROK E LO D NORMAN D

    IPC分类号: G02F1/09 G02F1/29 G02F1/22

    CPC分类号: G02F1/292 G02F1/091

    摘要: A magneto-optic light deflection system that utilizes the stripe domains in a magnetic film as a diffraction grating. The angle of deflection of the light from the plane of the film is varied in two dimensions by varying the separation and orientation of the stripe domains. The wall separation is varied by varying the intensity of a DC field in the plane of the film parallel to the stripe domains, or by varying the intensity of a DC field normal to the plane of the film. The orientation of the stripe domains is varied by varying the direction of the DC field in the film plane. Hysteresis is overcome by an AC tickle field perpendicular to the stripe domains.

    摘要翻译: 利用磁性膜中的条带作为衍射光栅的磁光偏转系统。 通过改变条带域的分离和取向,光从膜平面偏转的角度在二维上变化。 通过改变平行于条状域的膜的平面中的DC场的强度或通过改变垂直于膜的平面的DC场的强度来改变壁分离。 通过改变膜平面中的DC场的方向来改变条带域的取向。 通过垂直于条带域的AC痒痒场来克服迟滞。

    Ferrimagnetic iron garnet having large faraday effect
    2.
    发明授权
    Ferrimagnetic iron garnet having large faraday effect 失效
    FERRIMAGNETIC IRON GARNET有大的法拉利效应

    公开(公告)号:US3654162A

    公开(公告)日:1972-04-04

    申请号:US3654162D

    申请日:1970-10-01

    发明人: BUHRER CARL F

    IPC分类号: C04B35/26 C04B35/00 G02F1/22

    CPC分类号: C04B35/2641

    摘要: A FERRIMAGNETIC IRON GARNET HAVING THE GENERAL FORMULA

    (BI3-2X-YLNYCA2X)(FE2)(FE3-XVX)O12

    WHERE LN IS A TRIVALENT RARE EARTH ELEMENTF AND X AN Y ARE SELECTED TO PROVIDE BOTH A LARGE FARADY ROTATION AND A THERMALLY INDUCED MAGNETIC COMPENSATION POINT. THE GARNET IS PARTICULARLY APPLICABLE TO MAGNETO-OPTICAL MEMORIES IN WHICH BOTH THE READ-IN AND READ-OUT PROCESSES ARE OPTICALLY CONTROLLED.

    Ferric fluoride devices
    4.
    发明授权
    Ferric fluoride devices 失效
    FERRIC氟化物装置

    公开(公告)号:US3572894A

    公开(公告)日:1971-03-30

    申请号:US3572894D

    申请日:1968-12-27

    IPC分类号: G02F1/00 G02F1/22

    CPC分类号: G02F1/0036

    摘要: Ferric fluoride evidences a magneto-optic effect of device interest over a board frequency range including the major part of the visible spectrum. Modulators and isolators, either continuous or pulsed, may be operated over this entire frequency range at room temperature. Precautions to be taken to avoid flawing during growth of the material are described.