Near field optical head and method for manufacturing thereof
    8.
    发明授权
    Near field optical head and method for manufacturing thereof 有权
    近场光学头及其制造方法

    公开(公告)号:US06724718B1

    公开(公告)日:2004-04-20

    申请号:US09806649

    申请日:2001-05-07

    IPC分类号: G11B1732

    摘要: A near-field optical head has a slider having a minute aperture for emitting near-field light. The minute aperture has a diameter equal to or less than a wavelength of visible light. The slider is supported by a suspension arm for exerting a load, receiving a floating force due to relative movement with a recording medium, and forming a gap between the slider and the recording medium through a balance between the load and the floating force. A light propagating medium has an output end for emitting light. An optical path length shortening structure shortens an optical path length between the output end of the light propagating medium and the minute aperture of the slider. A mirror is disposed over the slider for guiding light emitted from the light propagating medium to the minute aperture of the slider.

    摘要翻译: 近场光学头具有用于发射近场光的具有微小孔径的滑块。 微小孔具有等于或小于可见光波长的直径。 滑块由用于施加负载的悬架臂支撑,由于与记录介质的相对运动而接收浮力,并且通过负载和浮力之间的平衡在滑块和记录介质之间形成间隙。 光传播介质具有用于发光的输出端。 光路长度缩短结构缩短了光传播介质的输出端和滑块的微小孔之间的光程长度。 镜子设置在滑块上方,用于将从光传播介质发射的光引导到滑块的微小孔。