Integrated device for heat assisted magnetic recording
    64.
    发明授权
    Integrated device for heat assisted magnetic recording 有权
    用于热辅助磁记录的集成装置

    公开(公告)号:US07706654B2

    公开(公告)日:2010-04-27

    申请号:US11934908

    申请日:2007-11-05

    IPC分类号: G02B6/10 G11B7/135

    CPC分类号: G11B5/314 G11B2005/0021

    摘要: An apparatus includes a first waveguide configured to focus an electromagnetic wave to a focal region, and a second waveguide to further condense the light to an optical spot. The second waveguide includes a metallic structure defining an opening having one end positioned adjacent to the focal region and a multilayer structure positioned in the opening, the multilayer structure including a first layer of dielectric material, and second and third layers of dielectric material positioned on opposite sides of the first layer. A layer of lower index of refraction than that of the first dielectric layer may be positioned adjacent to the inner walls of the opening in the second waveguide to efficiently excite surface plasmons, and propagate them with low loss.

    摘要翻译: 一种装置包括配置成将电磁波聚焦到焦点区域的第一波导和第二波导,以进一步将光缩小到光点。 第二波导包括限定开口的金属结构,该开口具有邻近聚焦区域定位的一端和位于开口中的多层结构,所述多层结构包括第一介电材料层,以及位于相对的第二层介质材料层 第一层的两边。 与第一介电层的折射率相比较低的折射率层可以邻近第二波导中的开口的内壁定位,以有效地激发表面等离子体激元,并以低损耗传播它们。