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    HEAT-ASSISTED MAGNETIC RECORDING HEAD WITH A NEAR-FIELD OSCILLATOR PAIR
    2.
    发明申请
    HEAT-ASSISTED MAGNETIC RECORDING HEAD WITH A NEAR-FIELD OSCILLATOR PAIR 有权

    公开(公告)号：US20220415352A1

    公开(公告)日：2022-12-29

    申请号：US17356419

    申请日：2021-06-23

    申请人： Seagate Technology LLC

    发明人： Chubing Peng

    IPC分类号： G11B13/08

    摘要： A heat-assisted magnetic recording head includes a near-field transducer (NFT). The NFT includes a plasmonic disk and a near-field oscillator pair. The near-field oscillator pair includes a receiving oscillator and an emitting oscillator. The receiving oscillator is operatively coupled to the plasmonic disk and configured to receive localized surface plasmons from the plasmonic disk and amplify a near field of the localized surface plasmons. The emitting oscillator is configured to receive the near field from the receiving oscillator and emit the near field toward a surface of a magnetic disk.

    HEAT-ASSISTED MAGNETIC RECORDING HEAD HAVING NEAR-FIELD TRANSDUCER WITH SUNKEN PLASMONIC PLATE
    3.
    发明申请
    HEAT-ASSISTED MAGNETIC RECORDING HEAD HAVING NEAR-FIELD TRANSDUCER WITH SUNKEN PLASMONIC PLATE 有权

    公开(公告)号：US20210335386A1

    公开(公告)日：2021-10-28

    申请号：US17238079

    申请日：2021-04-22

    申请人： Seagate Technology LLC

    发明人： Chubing Peng

    IPC分类号： G11B5/31

    摘要： A recording head includes a nanorod configured to heat a hotspot on a recording media, a plasmonic plate configured to concentrate an electric field to excite the nanorod, and a heat sink configured to dissipate heat from the nanorod. The recording head includes a first diffusion barrier plate configured to resist diffusion of materials between the plasmonic plate and the nanorod and a second diffusion barrier plate configured to resist diffusion of materials between the heat sink and the nanorod. The first diffusion barrier plate is disposed between the nanorod and the plasmonic plate and is coupled to a bottom surface of the nanorod. The second diffusion barrier plate is disposed between the heat sink and the nanorod and is coupled to the top surface of the nanorod.

    OFFSET WAVEGUIDE SYSTEM WITH A MODE CONVERTER AND A TAPERED BEND
    8.
    发明申请
    OFFSET WAVEGUIDE SYSTEM WITH A MODE CONVERTER AND A TAPERED BEND 有权

    公开(公告)号：US20170256277A1

    公开(公告)日：2017-09-07

    申请号：US15061453

    申请日：2016-03-04

    申请人： Seagate Technology LLC

    发明人： Chubing Peng

    IPC分类号： G11B5/48

    CPC分类号： G11B5/4866 ,  G11B5/012 ,  G11B5/105 ,  G11B5/127 ,  G11B5/314 ,  G11B5/6088 ,  G11B2005/0021

    摘要： A read/write head has an input coupler that receives light at a fundamental mode from an energy source. A mode converter of the read/write head converts light from the fundamental mode to a higher-order mode. The read/write head has a bent waveguide coupled to the mode converter at an interface. The bent waveguide includes a curve with a taper. The taper nullifies the fundamental mode generated in the curve and recovers the higher-order mode at an output of the bent waveguide. A near-field transducer that receives the output of the bent waveguide is offset from the facet of the input coupler in a cross-track direction.

    Alignment of optical components
    9.
    发明授权
    Alignment of optical components 有权

    公开(公告)号：US09613643B2

    公开(公告)日：2017-04-04

    申请号：US13959440

    申请日：2013-08-05

    申请人： Seagate Technology LLC

    发明人： Chubing Peng ,  Amit Sharma ,  Kaspar Ko

    IPC分类号： G01B9/00 ,  G11B5/31 ,  G11B5/105 ,  G11B5/00

    CPC分类号： G11B5/3166 ,  G11B5/105 ,  G11B2005/0021

    摘要： Alignment of a near field transducer (NFT) optical input coupler and a light emitting device involves providing excitation radiation from an excitation light source through an optical input coupler to the NFT and filtering output radiation from the NFT using a short wavelength pass optical filter. The optical input coupler is scanned through multiple positions while the photoluminescent radiation is detected. A first alignment position between the NFT input coupler and the excitation light source is identified based on the detected photoluminescent radiation. A light emitting device is scanned through multiple positions the light output is detected by a detector. A second alignment position between the light emitting device and the detector is identified. The first and second alignment positions are used to align the light emitting device with the optical input coupler.

    NEAR-FIELD TRANSDUCER WITH ENLARGED REGION, PEG REGION, AND HEAT SINK REGION
    10.
    发明申请
    NEAR-FIELD TRANSDUCER WITH ENLARGED REGION, PEG REGION, AND HEAT SINK REGION 审中-公开

    公开(公告)号：US20160300589A1

    公开(公告)日：2016-10-13

    申请号：US15183065

    申请日：2016-06-15

    申请人： Seagate Technology LLC

    发明人： Weibin Chen ,  Chubing Peng ,  Werner Scholz

    IPC分类号： G11B5/31 ,  G11B5/60 ,  G11B5/48

    CPC分类号： G11B5/3133 ,  G11B5/314 ,  G11B5/4866 ,  G11B5/6088 ,  G11B2005/0021

    摘要： A near-field transducer includes an enlarged region having a top side adjacent to a magnetic pole, a base side opposite the top side, and a circumference that extends from proximal to a media-facing surface to distal to a media-facing surface. The near-field transducer includes a peg region in contact with a region of the bas side of the enlarged region, the peg region extending from the enlarged region towards the media-facing surface. The near-field transducer also includes a heat sink region having a contact side, a base side, and a circumference that extends from proximal to the media-facing surface to distal from the media-facing surface. The contact side of the heat sink region is in thermal contact with both the peg region and at least a region of the base side of the enlarged region.