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    Shaped plasmon generators for thermally-assisted magnetic recording
    2.
    发明申请
    Shaped plasmon generators for thermally-assisted magnetic recording 有权
    用于热辅助磁记录的异形等离子体发生器

    公开(公告)号：US20110181979A1

    公开(公告)日：2011-07-28

    申请号：US12657637

    申请日：2010-01-25

    申请人： Xuhui Jin ,  Kenichi Takano ,  Yuchen Zhou ,  Erhard Schreck ,  Joe Smyth ,  Moris Dovek

    发明人： Xuhui Jin ,  Kenichi Takano ,  Yuchen Zhou ,  Erhard Schreck ,  Joe Smyth ,  Moris Dovek

    IPC分类号： G11B5/02

    CPC分类号： G11B5/314 ,  G11B5/6088 ,  G11B2005/001 ,  G11B2005/0021

    摘要： A TAMR (Thermal Assisted Magnetic Recording) write head uses the energy of optical-laser generated plasmons in a plasmon generator to locally heat a magnetic recording medium and reduce its coercivity and magnetic anisotropy. To enable the TAMR head to operate most effectively, the antenna is formed in three portions, a wide portion of uniform horizontal area, a tapered portion tapering towards the ABS of the write head and a narrow tip extending from the tapered portion to the ABS. The wide portion enhances coupling of optical radiation from a waveguide to surface plasmons generated within the generator, the tapered portion condenses and focuses the plasmons as they propagate towards the ABS and the narrow tip further focuses the surface plasmon field at the medium surface.

    摘要翻译： TAMR（热辅助磁记录）写头使用等离子体发生器中的光学激光器产生的等离子体激元的能量来局部加热磁记录介质并降低其矫顽力和磁各向异性。 为了使TAMR头能够最有效地工作，天线形成为三个部分，宽度均匀的水平区域，朝向写入头的ABS渐缩的锥形部分和从锥形部分延伸到ABS的窄尖端。 宽部分增强了来自波导的光辐射与在发生器内产生的表面等离子体激元的耦合，锥形部分在等离子体激元朝向ABS传播时冷凝并聚焦等离子体，并且窄尖端进一步将中等表面的表面等离子体场聚焦。

    Magnetic core plasmon antenna with recessed plasmon layer
    5.
    发明授权
    Magnetic core plasmon antenna with recessed plasmon layer 有权
    具有凹陷等离子体层的磁芯等离子体天线

    公开(公告)号：US08059496B1

    公开(公告)日：2011-11-15

    申请号：US12804232

    申请日：2010-07-16

    申请人： Yuchen Zhou ,  Xuhui Jin ,  Kenichi Takano ,  Moris Dovek ,  Tobias Maletzky ,  Erhard Schreck ,  Joe Smyth

    发明人： Yuchen Zhou ,  Xuhui Jin ,  Kenichi Takano ,  Moris Dovek ,  Tobias Maletzky ,  Erhard Schreck ,  Joe Smyth

    IPC分类号： G11B11/00

    CPC分类号： G11B5/314 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/6088 ,  G11B2005/0021

    摘要： Various embodiments of a TAMR head having a magnetic core antenna (MCA) with a recessed plasmon layer are disclosed. An end of the plasmon layer is separated from the ABS by a magnetic layer that transmits the plasmon mode from the plasmon layer and transmits magnetic flux from an adjacent main pole layer. Both of the MCA and magnetic layer may have a triangular shape from an ABS view. There may be a non-magnetic separation layer between the MCA magnetic core and the main pole. Furthermore, a magnetic shield may be included with a side at the ABS, a side facing an end of a waveguide that transmits electromagnetic radiation to the MCA, and a side facing an edge of the plasmon layer. The recessed plasmon layer allows an improved overlay of the thermal heating spot on the magnetic field gradient at the magnetic medium that provides better TAMR performance.

    摘要翻译： 公开了具有带凹陷等离子体层的磁芯天线（MCA）的TAMR磁头的各种实施例。 等离子体激元层的一端通过从等离子体激元层传输等离子体模式的磁层与ABS分离，并从相邻的主极层传输磁通量。 从ABS观点来看，MCA和磁性层都可以具有三角形形状。 在MCA磁芯和主极之间可能存在非磁性分离层。 此外，在ABS的一侧可以包括磁屏蔽，面向朝向MCA的电磁辐射的波导的端部的一侧以及面向等离子体层的边缘的一侧。 凹入的等离子体膜层允许在磁介质上的磁场梯度上的热加热点的改进的叠加，从而提供更好的TAMR性能。

    Shaped plasmon generators for thermally-assisted magnetic recording
    6.
    发明授权
    Shaped plasmon generators for thermally-assisted magnetic recording 有权
    用于热辅助磁记录的异形等离子体发生器

    公开(公告)号：US08284637B2

    公开(公告)日：2012-10-09

    申请号：US12657637

    申请日：2010-01-25

    申请人： Xuhui Jin ,  Kenichi Takano ,  Yuchen Zhou ,  Erhard Schreck ,  Joe Smyth ,  Moris Dovek

    发明人： Xuhui Jin ,  Kenichi Takano ,  Yuchen Zhou ,  Erhard Schreck ,  Joe Smyth ,  Moris Dovek

    IPC分类号： G11B11/00

    CPC分类号： G11B5/314 ,  G11B5/6088 ,  G11B2005/001 ,  G11B2005/0021

    摘要： A TAMR (Thermal Assisted Magnetic Recording) write head uses the energy of optical-laser generated plasmons in a plasmon generator to locally heat a magnetic recording medium and reduce its coercivity and magnetic anisotropy. To enable the TAMR head to operate most effectively, the antenna is formed in three portions, a wide portion of uniform horizontal area, a tapered portion tapering towards the ABS of the write head and a narrow tip extending from the tapered portion to the ABS. The wide portion enhances coupling of optical radiation from a waveguide to surface plasmons generated within the generator, the tapered portion condenses and focuses the plasmons as they propagate towards the ABS and the narrow tip further focuses the surface plasmon field at the medium surface.

    摘要翻译： TAMR（热辅助磁记录）写头使用等离子体发生器中的光学激光器产生的等离子体激元的能量来局部加热磁记录介质并降低其矫顽力和磁各向异性。 为了使TAMR头能够最有效地工作，天线形成为三个部分，宽度均匀的水平区域，朝向写入头的ABS渐缩的锥形部分和从锥形部分延伸到ABS的窄尖端。 宽部分增强了来自波导的光辐射与在发生器内产生的表面等离子体激元的耦合，锥形部分在等离子体激元朝向ABS传播时冷凝并聚焦等离子体，并且窄尖端进一步将中等表面的表面等离子体场聚焦。

    Plasmon antenna with magnetic core for thermally assisted magnetic recording
    8.
    发明申请
    Plasmon antenna with magnetic core for thermally assisted magnetic recording 有权
    带磁芯的等离子体天线，用于热辅助磁记录

    公开(公告)号：US20100315735A1

    公开(公告)日：2010-12-16

    申请号：US12456290

    申请日：2009-06-15

    申请人： Yuchen Zhou ,  Kenichi Takano ,  Xuhui Jin ,  Erhard Schreck ,  Moris Dovek ,  Joe Smyth

    发明人： Yuchen Zhou ,  Kenichi Takano ,  Xuhui Jin ,  Erhard Schreck ,  Moris Dovek ,  Joe Smyth

    IPC分类号： G11B5/02

    CPC分类号： G11B5/314 ,  G11B5/02 ,  G11B5/3116 ,  G11B5/3146 ,  G11B5/6088 ,  G11B2005/0005 ,  G11B2005/0021 ,  Y10T29/49032

    摘要： A TAMR (Thermal Assisted Magnetic Recording) write head uses the energy of optical-laser generated plasmons in a plasmon antenna to locally heat a magnetic recording medium and reduce its coercivity and magnetic anisotropy. To enable the TAMR head to operate most effectively, the maximum gradient of the magnetic recording field should be concentrated in the small region being heated. Typically this does not occur because the spot being heated by the antenna is offset from the position at which the magnetic pole concentrates its magnetic field. The present invention incorporates a magnetic core within a plasmon antenna, so the antenna effectively becomes an extension of the magnetic pole and produces a magnetic field whose maximum gradient overlaps the region being heated by edge plasmons being generated in a conducting layer surrounding the antenna's magnetic core.

    摘要翻译： TAMR（热辅助磁记录）写头使用等离子体天线中激光产生的等离子体激元的能量来局部加热磁记录介质并降低其矫顽力和磁各向异性。 为了使TAMR头能够最有效地运行，磁记录场的最大梯度应该集中在被加热的小区域中。 通常这不会发生，因为被天线加热的点偏离磁极集中其磁场的位置。 本发明在等离子体激元天线内结合有磁芯，因此天线有效地成为磁极的延伸，并产生磁场，其最大梯度与在天线的磁芯周围的导电层中产生的边缘等离子体激元加热的区域重叠 。

    Plasmon antenna with magnetic core for thermally assisted magnetic recording
    9.
    发明授权
    Plasmon antenna with magnetic core for thermally assisted magnetic recording 有权
    带磁芯的等离子体天线，用于热辅助磁记录

    公开(公告)号：US08233358B2

    公开(公告)日：2012-07-31

    申请号：US12456290

    申请日：2009-06-15

    申请人： Yuchen Zhou ,  Kenichi Takano ,  Xuhui Jin ,  Erhard Schreck ,  Moris Dovek ,  Joe Smyth

    发明人： Yuchen Zhou ,  Kenichi Takano ,  Xuhui Jin ,  Erhard Schreck ,  Moris Dovek ,  Joe Smyth

    IPC分类号： G11B11/00

    CPC分类号： G11B5/314 ,  G11B5/02 ,  G11B5/3116 ,  G11B5/3146 ,  G11B5/6088 ,  G11B2005/0005 ,  G11B2005/0021 ,  Y10T29/49032

    摘要： A TAMR (Thermal Assisted Magnetic Recording) write head uses the energy of optical-laser generated plasmons in a plasmon antenna to locally heat a magnetic recording medium and reduce its coercivity and magnetic anisotropy. To enable the TAMR head to operate most effectively, the maximum gradient of the magnetic recording field should be concentrated in the small region being heated. Typically this does not occur because the spot being heated by the antenna is offset from the position at which the magnetic pole concentrates its magnetic field. The present invention incorporates a magnetic core within a plasmon antenna, so the antenna effectively becomes an extension of the magnetic pole and produces a magnetic field whose maximum gradient overlaps the region being heated by edge plasmons being generated in a conducting layer surrounding the antenna's magnetic core.

    摘要翻译： TAMR（热辅助磁记录）写头使用等离子体天线中激光产生的等离子体激元的能量来局部加热磁记录介质并降低其矫顽力和磁各向异性。 为了使TAMR头能够最有效地运行，磁记录场的最大梯度应该集中在被加热的小区域中。 通常这不会发生，因为被天线加热的点偏离磁极集中其磁场的位置。 本发明在等离子体激元天线内结合有磁芯，因此天线有效地成为磁极的延伸，并产生磁场，其最大梯度与在天线的磁芯周围的导电层中产生的边缘等离子体激元加热的区域重叠 。

    3-D self-focusing gap plasmon generator for TAMR
    10.
    发明申请
    3-D self-focusing gap plasmon generator for TAMR 有权
    用于TAMR的3-D自聚焦间隙等离子体发生器

    公开(公告)号：US20110292537A1

    公开(公告)日：2011-12-01

    申请号：US12802082

    申请日：2010-05-28

    申请人： Xuhui Jin ,  Joe Smyth ,  Moris Dovek

    发明人： Xuhui Jin ,  Joe Smyth ,  Moris Dovek

    IPC分类号： G11B5/02

    CPC分类号： G11B5/1278 ,  G11B5/314 ,  G11B2005/001 ,  G11B2005/0021

    摘要： A device for implementing thermally assisted magnetic recording, using a TE mode laser diode, and method for using it, are described. This device is shaped internally so as to provide three-dimensional self-focusing of plasmon radiation, thereby improving the coupling efficiency between the optical wave-guide and the plasmon generator as a result of ensuring a large overlap between these two modes.

    摘要翻译： 描述了使用TE模式激光二极管实现热辅助磁记录的装置及其使用方法。 该装置在内部成形，以提供等离子体激元辐射的三维自聚焦，从而通过确保这两种模式之间的大的重叠而提高光波导和等离子体发生器之间的耦合效率。