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    • 3. 发明授权
    • Directional waveguide coupler for ABS reflected light
    • ABS反射光的定向波导耦合器
    • US08238202B2
    • 2012-08-07
    • US12928678
    • 2010-12-16
    • Erhard SchreckTobias MaletzkyXuhui JinYuchen ZhouKenichi TakanoJoe Smyth
    • Erhard SchreckTobias MaletzkyXuhui JinYuchen ZhouKenichi TakanoJoe Smyth
    • G11B11/00
    • G11B5/314B82Y20/00G02B6/1226G02B6/125G02B6/2821G11B5/3189G11B2005/001G11B2005/0021
    • A waveguide structure for a TAMR head is disclosed wherein at least one detection waveguide is formed parallel to a main waveguide and located a gap distance therefrom. A light source transmits light into the main waveguide and towards an ABS/medium interface. A plasmon generator converts light from the waveguide into plasmon waves that are directed onto a magnetic medium. Back reflected light is captured by the main waveguide, partially diverted into a detection waveguide, and transmitted to a photo detector that measures light intensity (IB) which correlates closely to the plasmon wave intensity at the ABS/medium interface. A controller linked to the photo detector is employed to calculate IB as a function of ABS/medium spacing in a non-write condition and this relationship can be used to control and maintain a constant plasmon wave intensity at the ABS during a series of TAMR write processes with a plurality of media.
    • 公开了一种用于TAMR头的波导结构,其中至少一个检测波导与主波导平行地形成并且与其间的间隙距离。 光源将光传输到主波导并朝向ABS /介质接口。 等离子体激元发生器将来自波导的光转换成被引导到磁介质上的等离子体波。 后反射光被主波导捕获,部分转移到检测波导中,并传输到光检测器,该光检测器测量与ABS /介质界面处的等离子体波强度密切相关的光强度(IB)。 在非写入条件下,使用与光电检测器相关联的控制器来计算IB作为ABS /介质间隔的函数,并且该关系可用于在一系列TAMR写入期间控制和维持ABS处的恒定等离子体波强度 具有多个媒体的过程。
    • 4. 发明授权
    • Plasmon shield to shape and reduce optical spot
    • 等离子体屏蔽形状并减少光斑
    • US08036069B1
    • 2011-10-11
    • US12802096
    • 2010-05-28
    • Xuhui JinYuchen ZhouJoe SmythTobias MaletzkyKenichi TakanoErhard Schreck
    • Xuhui JinYuchen ZhouJoe SmythTobias MaletzkyKenichi TakanoErhard Schreck
    • G11B11/00
    • G11B5/314G02B6/107G11B2005/0021
    • A TAMR head is disclosed with a triangular shaped plasmon antenna covered on two sides with a plasmon layer that generates an edge plasmon mode along a vertex of the two plasmon sides formed opposite a main pole layer. A plasmon shield (PS) is formed along the ABS and opposite the vertex to confine an electric field from the edge plasmon mode within a small radius of the edge plasmon tip thereby reducing the optical spot size on the magnetic medium and enhancing writability. An end of a waveguide used to direct input electromagnetic radiation to the plasmon antenna adjoins a PS side opposite the ABS. In one embodiment, a magnetic shield may be formed along the ABS and adjoins the PS so that a first PS section terminates at the ABS and faces the vertex while a second PS section is formed between the magnetic shield and waveguide end.
    • 公开了具有三面形等离子体激元的三角形等离子体激元天线,该三角形等离子体激元天线用等离子体膜覆盖,该等离子体膜沿着与主极层相对的两个等离子体激元侧的顶点产生边缘等离子体模式。 等离子体屏蔽(PS)沿着ABS形成并与顶点相对,以将边缘等离子体激元模式的电场限制在边缘等离子体激元尖端的小半径内,从而减小磁介质上的光点尺寸并提高可写性。 用于将输入电磁辐射引导到等离子体激元天线的波导的一端与ABS相对的PS侧相邻。 在一个实施例中,可以沿着ABS形成磁屏蔽并与PS邻接,使得第一PS部分在ABS处终止并面向顶点,而在磁屏蔽和波导端之间形成第二PS部分。
    • 6. 发明授权
    • Plasmon shield to shape and reduce optical spot
    • 等离子体屏蔽形状并减少光斑
    • US08295132B2
    • 2012-10-23
    • US13200478
    • 2011-09-23
    • Xuhui JinYuchen ZhouJoe SmythTobias MaletzkyKenichi TakanoErhard Schreck
    • Xuhui JinYuchen ZhouJoe SmythTobias MaletzkyKenichi TakanoErhard Schreck
    • G11B11/00
    • G11B5/3146G11B5/1278G11B5/1871G11B5/23G11B5/3116G11B5/315G11B5/3163
    • A TAMR head is disclosed with a triangular shaped plasmon antenna covered on two sides with a plasmon layer that generates an edge plasmon mode along a vertex of the two plasmon sides formed opposite a main pole layer. A plasmon shield (PS) is formed along the ABS and opposite the vertex to confine an electric field from the edge plasmon mode within a small radius of the edge plasmon tip thereby reducing the optical spot size on the magnetic medium and enhancing writability. An end of a waveguide used to direct input electromagnetic radiation to the plasmon antenna adjoins a PS side opposite the ABS. In one embodiment, a magnetic shield may be formed along the ABS and adjoins the PS so that a first PS section terminates at the ABS and faces the vertex while a second PS section is formed between the magnetic shield and waveguide end.
    • 公开了具有三面形等离子体激元的三角形等离子体激元天线,该三角形等离子体激元天线用等离子体膜覆盖,该等离子体膜沿着与主极层相对的两个等离子体激元侧的顶点产生边缘等离子体模式。 等离子体屏蔽(PS)沿着ABS形成并与顶点相对,以将边缘等离子体激元模式的电场限制在边缘等离子体激元尖端的小半径内,从而减小磁介质上的光点尺寸并提高可写性。 用于将输入电磁辐射引导到等离子体激元天线的波导的一端与ABS相对的PS侧相邻。 在一个实施例中,可以沿着ABS形成磁屏蔽并与PS邻接,使得第一PS部分在ABS处终止并面向顶点,而在磁屏蔽和波导端之间形成第二PS部分。