公开(公告)号：US08416530B2

公开(公告)日：2013-04-09

申请号：US12582236

申请日：2009-10-20

申请人： Kaizhong Gao ,  Xuhui Jin ,  Arkadi Goulakov

发明人： Kaizhong Gao ,  Xuhui Jin ,  Arkadi Goulakov

IPC分类号： G11B11/24 ,  G11B5/127 ,  G11B13/08 ,  G11B9/12

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

摘要： A magnetic recording head comprises a write pole tip adjacent to an air bearing surface and a return pole. In addition, a near field transducer is positioned adjacent the write pole in order to produce near field radiation to heat a portion of a recording medium to facilitate switching by the magnetic write pole. The near field transducer is a reverse optical near field transducer with internal bevel structures that enhance the magnetic write field intensity.

摘要翻译： 磁记录头包括与空气轴承表面相邻的写极尖和返回极。 此外，近场传感器位于写极附近，以便产生近场辐射，以加热记录介质的一部分以便于磁写入极的切换。 近场传感器是具有增强磁写入场强的内部斜面结构的反向光学近场传感器。

公开(公告)号：US20110090588A1

公开(公告)日：2011-04-21

申请号：US12582236

申请日：2009-10-20

申请人： Kaizhong Gao ,  Xuhui Jin ,  Arkadi Goulakov

发明人： Kaizhong Gao ,  Xuhui Jin ,  Arkadi Goulakov

IPC分类号： G11B5/02

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

摘要： A magnetic recording head comprises a write pole tip adjacent to an air bearing surface and a return pole. In addition, a near field transducer is positioned adjacent the write pole in order to produce near field radiation to heat a portion of a recording medium to facilitate switching by the magnetic write pole. The near field transducer is a reverse optical near field transducer with internal bevel structures that enhance the magnetic write field intensity.

摘要翻译： 磁记录头包括与空气轴承表面相邻的写极尖和返回极。 此外，近场传感器位于写极附近，以便产生近场辐射，以加热记录介质的一部分以便于磁写入极的切换。 近场传感器是具有增强磁写入场强的内部斜面结构的反向光学近场传感器。

公开(公告)号：US08649245B2

公开(公告)日：2014-02-11

申请号：US12749102

申请日：2010-03-29

申请人： Arkadi Goulakov ,  Kaizhong Gao ,  Xuhui Jin

发明人： Arkadi Goulakov ,  Kaizhong Gao ,  Xuhui Jin

IPC分类号： G11B11/00

CPC分类号： G11B5/3116 ,  B82Y20/00 ,  G02B6/1226 ,  G11B5/314 ,  G11B5/3163 ,  G11B5/6088 ,  G11B2005/0021

摘要： A magnetic recording head comprises a write pole having a pole tip adjacent to an air bearing surface, a return pole, an optical near field transducer positioned adjacent the pole tip and an air bearing surface for exposing a portion of a magnetic storage medium to high energy radiation. The energy is directly provided to the near field transducer by a ridge waveguide with tapered coupling elements, by a two dimensional straight or curved waveguide with a beveled end with a metal/dielectric coating for delivering energy to the near field transducer, or by a curved waveguide. The waveguide with tapered coupling elements or with beveled end can be fabricated by means of conventional wafer processing.

摘要翻译： 磁记录头包括具有与空气轴承表面相邻的极端部的写极，返回极，邻近极尖定位的光学近场传感器和用于将磁存储介质的一部分暴露于高能量的空气轴承表面 辐射。 通过具有锥形耦合元件的脊形波导将能量直接提供给近场传感器，通过具有带有用于将能量传递到近场换能器的金属/电介质涂层的倾斜端的二维直线或弯曲波导，或通过弯曲 波导。 具有锥形耦合元件或具有倾斜端的波导可以通过常规晶片处理来制造。

公开(公告)号：US20110235480A1

公开(公告)日：2011-09-29

申请号：US12749102

申请日：2010-03-29

申请人： Arkadi Goulakov ,  Kaizhong Gao ,  Xuhui Jin

发明人： Arkadi Goulakov ,  Kaizhong Gao ,  Xuhui Jin

IPC分类号： G11B11/03 ,  G11B5/187

CPC分类号： G11B5/3116 ,  B82Y20/00 ,  G02B6/1226 ,  G11B5/314 ,  G11B5/3163 ,  G11B5/6088 ,  G11B2005/0021

摘要： A magnetic recording head comprises a write pole having a pole tip adjacent to an air bearing surface, a return pole, an optical near field transducer positioned adjacent the pole tip and an air bearing surface for exposing a portion of a magnetic storage medium to high energy radiation. The energy is directly provided to the near field transducer by a ridge waveguide with tapered coupling elements, by a two dimensional straight or curved waveguide with a beveled end with a metal/dielectric coating for delivering energy to the near field transducer, or by a curved waveguide. The waveguide with tapered coupling elements or with beveled end can be fabricated by means of conventional wafer processing.

摘要翻译： 磁记录头包括具有与空气轴承表面相邻的极端部的写极，返回极，邻近极尖定位的光学近场传感器和用于将磁存储介质的一部分暴露于高能量的空气轴承表面 辐射。 通过具有锥形耦合元件的脊形波导将能量直接提供给近场传感器，通过具有带有用于将能量传递到近场换能器的金属/电介质涂层的倾斜端的二维直线或弯曲波导，或通过弯曲 波导。 具有锥形耦合元件或具有倾斜端的波导可以通过常规晶片处理来制造。

公开(公告)号：US08743497B2

公开(公告)日：2014-06-03

申请号：US13608554

申请日：2012-09-10

申请人： Kaizhong Gao ,  Michael Allen Seigler ,  Xuhui Jin ,  Ganping Ju ,  Bin Lu

发明人： Kaizhong Gao ,  Michael Allen Seigler ,  Xuhui Jin ,  Ganping Ju ,  Bin Lu

IPC分类号： G11B5/02

CPC分类号： G11B5/314 ,  B82Y10/00 ,  G11B5/743 ,  G11B5/855 ,  G11B2005/001 ,  G11B2005/0021

摘要： An apparatus includes a recording media including a substrate, a plurality of tracks of magnetic material on the substrate, and a non-magnetic material between the tracks; a recording head having an air bearing surface positioned adjacent to the recording media, and including a magnetic pole, an optical transducer, and a near-field transducer, wherein the near-field transducer directs electromagnetic radiation onto tracks to heat portions of the tracks and a magnetic field from the magnetic pole is used to create magnetic transitions in the heated portions of the tracks; and a plasmonic material positioned adjacent to the magnetic material to increase coupling between the electromagnetic radiation and the magnetic material.

摘要翻译： 一种设备包括：记录介质，包括基板，多个基板上的磁性材料轨迹，以及轨道之间的非磁性材料; 记录头，其具有邻近记录介质定位的空气轴承表面，并且包括磁极，光学换能器和近场换能器，其中近场换能器将电磁辐射引导到轨道上以加热轨道的部分， 来自磁极的磁场用于在轨道的加热部分中产生磁转变; 以及与磁性材料相邻定位的等离子体元件，以增加电磁辐射与磁性材料之间的耦合。

公开(公告)号：US08385159B2

公开(公告)日：2013-02-26

申请号：US12785003

申请日：2010-05-21

申请人： Kaizhong Gao ,  Yongjun Zhao ,  William A. Challener ,  Xuhui Jin

发明人： Kaizhong Gao ,  Yongjun Zhao ,  William A. Challener ,  Xuhui Jin

IPC分类号： G11B11/00

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

摘要： A magnetic recording head consists of a write pole and a near field transducer close to the write pole that focuses light energy to a focal point. A near field transducer is positioned to receive light energy from a waveguide. The near field transducer comprises an energy-receiving end and an energy-radiating end. The energy-receiving end is located near the focal point of the waveguide and the energy-radiating end is shaped such that it is narrower closer to the write pole and wider farther from the write pole.

摘要翻译： 磁记录头由靠近写入极的写极和近场传感器组成，将光能聚焦到焦点。 定位近场传感器以从波导接收光能。 近场换能器包括能量接收端和能量辐射端。 能量接收端位于波导的焦点附近，并且能量辐射端被成形为使得其更靠近写入极并且比写入极更远。

公开(公告)号：US20130003511A1

公开(公告)日：2013-01-03

申请号：US13608554

申请日：2012-09-10

申请人： Kaizhong Gao ,  Michael Allen Seigler ,  Xuhui Jin ,  Ganping Ju ,  Bin Lu

发明人： Kaizhong Gao ,  Michael Allen Seigler ,  Xuhui Jin ,  Ganping Ju ,  Bin Lu

IPC分类号： G11B13/04

CPC分类号： G11B5/314 ,  B82Y10/00 ,  G11B5/743 ,  G11B5/855 ,  G11B2005/001 ,  G11B2005/0021

摘要： An apparatus includes a recording media including a substrate, a plurality of tracks of magnetic material on the substrate, and a non-magnetic material between the tracks; a recording head having an air bearing surface positioned adjacent to the recording media, and including a magnetic pole, an optical transducer, and a near-field transducer, wherein the near-field transducer directs electromagnetic radiation onto tracks to heat portions of the tracks and a magnetic field from the magnetic pole is used to create magnetic transitions in the heated portions of the tracks; and a plasmonic material positioned adjacent to the magnetic material to increase coupling between the electromagnetic radiation and the magnetic material.

摘要翻译： 一种设备包括：记录介质，包括基板，多个基板上的磁性材料轨迹，以及轨道之间的非磁性材料; 记录头，其具有邻近记录介质定位的空气轴承表面，并且包括磁极，光学换能器和近场换能器，其中近场换能器将电磁辐射引导到轨道上以加热轨道的部分， 来自磁极的磁场用于在轨道的加热部分中产生磁转变; 以及与磁性材料相邻定位的等离子体元件，以增加电磁辐射与磁性材料之间的耦合。

公开(公告)号：US20100214684A1

公开(公告)日：2010-08-26

申请号：US12390592

申请日：2009-02-23

申请人： Kaizhong Gao ,  Michael Allen Seigler ,  Xuhui Jin ,  Ganping Ju ,  Bin Lu

发明人： Kaizhong Gao ,  Michael Allen Seigler ,  Xuhui Jin ,  Ganping Ju ,  Bin Lu

IPC分类号： G11B5/02

CPC分类号： G11B5/314 ,  B82Y10/00 ,  G11B5/743 ,  G11B5/855 ,  G11B2005/001 ,  G11B2005/0021

摘要： An apparatus includes a recording media including a substrate, a plurality of tracks of magnetic material on the substrate, and a non-magnetic material between the tracks; a recording head having an air bearing surface positioned adjacent to the recording media, and including a magnetic pole, an optical transducer, and a near-field transducer, wherein the near-field transducer directs electromagnetic radiation onto tracks to heat portions of the tracks and a magnetic field from the magnetic pole is used to create magnetic transitions in the heated portions of the tracks; and a plasmonic material positioned adjacent to the magnetic material to increase coupling between the electromagnetic radiation and the magnetic material.

摘要翻译： 一种设备包括：记录介质，包括基板，多个基板上的磁性材料轨迹，以及轨道之间的非磁性材料; 记录头，其具有邻近记录介质定位的空气轴承表面，并且包括磁极，光学换能器和近场换能器，其中近场换能器将电磁辐射引导到轨道上以加热轨道的部分， 来自磁极的磁场用于在轨道的加热部分中产生磁转变; 以及与磁性材料相邻定位的等离子体元件，以增加电磁辐射与磁性材料之间的耦合。

公开(公告)号：US20120163139A1

公开(公告)日：2012-06-28

申请号：US12976559

申请日：2010-12-22

申请人： William Paul Vavra ,  Xuhui Jin ,  Xiaoyue Huang ,  Michael Christopher Kautzky ,  Kaizhong Gao

发明人： William Paul Vavra ,  Xuhui Jin ,  Xiaoyue Huang ,  Michael Christopher Kautzky ,  Kaizhong Gao

IPC分类号： G11B13/08

CPC分类号： G11B5/314 ,  G11B2005/0021

摘要： Thermal energy is generated within an optical NFT when in operation within a HAMR head. A heat-sink assembly within the HAMR head extracts thermal energy from the optical NFT and transmits the thermal energy via convection to air surrounding the HAMR head, radiation to surfaces adjacent to the HAMR head, and/or conduction to other parts of the HAMR head. The thermal energy generated within the optical NFT is conducted to the heat-sink. An air-bearing surface of the heat-sink convectively transfers at least some of the thermal energy to air passing between the air-bearing surface and a surface of an adjacent magnetic medium. Further, some of the thermal energy may also radiatively transfer from the air-bearing surface to the magnetic medium.

摘要翻译： 当在HAMR头内操作时，在光学NFT内产生热能。 HAMR头内的散热器组件从光学NFT提取热能，并通过对流将热能传递到HAMR头周围的空气，辐射到与HAMR头相邻的表面，和/或传导到HAMR头的其他部分 。 在光学NFT内产生的热能被传导到散热器。 散热器的空气轴承表面将至少一些热能对流地传递到通过空气轴承表面和相邻磁性介质的表面之间的空气。 此外，一些热能也可以从空气轴承表面辐射传递到磁性介质。

公开(公告)号：US08264788B2

公开(公告)日：2012-09-11

申请号：US12390592

申请日：2009-02-23

申请人： Kaizhong Gao ,  Michael Allen Seigler ,  Xuhui Jin ,  Ganping Ju ,  Bin Lu

发明人： Kaizhong Gao ,  Michael Allen Seigler ,  Xuhui Jin ,  Ganping Ju ,  Bin Lu

IPC分类号： G11B5/02

CPC分类号： G11B5/314 ,  B82Y10/00 ,  G11B5/743 ,  G11B5/855 ,  G11B2005/001 ,  G11B2005/0021

摘要： An apparatus includes a recording media including a substrate, a plurality of tracks of magnetic material on the substrate, and a non-magnetic material between the tracks; a recording head having an air bearing surface positioned adjacent to the recording media, and including a magnetic pole, an optical transducer, and a near-field transducer, wherein the near-field transducer directs electromagnetic radiation onto tracks to heat portions of the tracks and a magnetic field from the magnetic pole is used to create magnetic transitions in the heated portions of the tracks; and a plasmonic material positioned adjacent to the magnetic material to increase coupling between the electromagnetic radiation and the magnetic material.

摘要翻译： 一种设备包括：记录介质，包括基板，多个基板上的磁性材料轨迹，以及轨道之间的非磁性材料; 记录头，其具有邻近记录介质定位的空气轴承表面，并且包括磁极，光学换能器和近场换能器，其中近场换能器将电磁辐射引导到轨道上以加热轨道的部分， 来自磁极的磁场用于在轨道的加热部分中产生磁转变; 以及与磁性材料相邻定位的等离子体元件，以增加电磁辐射与磁性材料之间的耦合。