Linear-carrier phase-mask interferometer
    1.
    发明申请
    Linear-carrier phase-mask interferometer 有权
    线性载波相位掩模干涉仪

    公开(公告)号:US20070211256A1

    公开(公告)日:2007-09-13

    申请号:US11800840

    申请日:2007-05-08

    IPC分类号: G01B9/02

    摘要: A phase-difference sensor measures the spatially resolved difference in phase between orthogonally polarized reference and test wavefronts. The sensor is constructed as a linear-carrier phase-mask aligned to and imaged on a linear-carrier detector array. Each adjacent element of the phase-mask measures a predetermined relative phase shift between the orthogonally polarized reference and test beams. Thus, multiple phase-shifted interferograms can be synthesized at the same time by combining pixels with identical phase-shifts. The multiple phase-shifted interferograms can be combined to calculate standard parameters such as modulation index or average phase step. Any configuration of interferometer that produces orthogonally polarized reference and object beams may be combined with the phase-difference sensor of the invention to provide single-shot, simultaneous phase-shifting measurements.

    摘要翻译: 相位差传感器测量正交极化参考和测试波前的相位的空间分辨差异。 传感器被构造为与线性载波检测器阵列对准并成像的线性载波相位掩模。 相位掩模的每个相邻元件测量正交极化参考和测试光束之间的预定相对相移。 因此,通过组合具有相同相移的像素,可以同时合成多个相移干涉图。 可以组合多个相移干涉图以计算标准参数,例如调制指数或平均相位步长。 可以将产生正交偏振的参考和物体光束的干涉仪的任何配置与本发明的相位差传感器组合以提供单次,同时的相移测量。

    Magneto-optical recording medium
    3.
    发明授权
    Magneto-optical recording medium 失效
    磁光记录介质

    公开(公告)号:US06587427B1

    公开(公告)日:2003-07-01

    申请号:US09088530

    申请日:1998-06-01

    申请人: Brian Medower

    发明人: Brian Medower

    IPC分类号: G11B724

    摘要: A magneto-optical recording medium in a near-field optical storage system is provided. A flying optical head is suspended over the medium by a cushion of gas. The medium includes a magneto-optical recording layer including at least one recording track for magneto-optical recording of information. A tracking feature is associated with the recording track. An upper transparent dielectric layer is provided having an upper surface which is substantially planar over a recordable area of the medium above the recording track and the tracking feature. A reflector layer is positioned below the magneto-optical layer above a base substrate.

    摘要翻译: 提供近场光存储系统中的磁光记录介质。 飞行光学头通过气垫悬挂在介质上。 介质包括磁光记录层,该磁光记录层包括至少一个用于磁光记录信息的记录道。 跟踪功能与记录轨道相关联。 提供上透明介电层,其具有在记录轨道上方的介质的可记录区域上的基本平面的上表面和跟踪特征。 反射层位于基底基板上方的磁光层的下方。