Slider with integrated thermally-assisted recording (TAR) head and vertical-cavity surface-emitting laser (VCSEL) with angled external cavity
    2.
    发明授权
    Slider with integrated thermally-assisted recording (TAR) head and vertical-cavity surface-emitting laser (VCSEL) with angled external cavity 有权
    具有集成热辅助记录(TAR)头和垂直腔表面发射激光器(VCSEL)的滑块具有成角度的外部空腔

    公开(公告)号:US08139448B1

    公开(公告)日:2012-03-20

    申请号:US12969384

    申请日:2010-12-15

    Abstract: A thermally-assisted recording (TAR) slider has an integrated TAR head and an integrated external-cavity VCSEL. The TAR head is integrated with the slider at the trailing end and includes an optical waveguide having a grating coupler oriented in a plane generally parallel to the slider trailing end, and a near-field transducer (NFT) at the slider air-bearing surface (ABS) and coupled to the waveguide. The external cavity is an angled structure and has an input surface for receipt of laser radiation output from the VCSEL, an output surface near the slider trailing end, a partially reflecting third mirror near the output surface, and at least one reflective surface between the input surface and the third mirror for turning the laser radiation and reflecting it between the VCSEL and the third mirror. The laser radiation is output from the external cavity's output surface, through the trailing end of the slider and to the grating coupler.

    Abstract translation: 热辅助记录(TAR)滑块具有集成的TAR头和集成的外腔VCSEL。 TAR头与后端的滑块一体化,并且包括光导体,其具有在大致平行于滑块后端的平面中定向的光栅耦合器,以及在滑块空气轴承表面处的近场换能器(NFT) ABS)并耦合到波导。 外部空腔是成角度的结构,并且具有用于接收从VCSEL输出的激光辐射的输入表面,靠近滑块后端的输出表面,在输出表面附近的部分反射的第三反射镜,以及输入端之间的至少一个反射表面 表面和第三反射镜,用于转动激光辐射并将其反射在VCSEL和第三反射镜之间。 激光辐射从外部空腔的输出表面,通过滑块的后端和光栅耦合器输出。

    THERMALLY ASSISTED RECORDING HEAD HAVING RECESSED WAVEGUIDE WITH NEAR FIELD TRANSDUCER AND METHODS OF MAKING SAME
    3.
    发明申请
    THERMALLY ASSISTED RECORDING HEAD HAVING RECESSED WAVEGUIDE WITH NEAR FIELD TRANSDUCER AND METHODS OF MAKING SAME 有权
    具有近场传感器的受保护波形的热辅助记录头及其制造方法

    公开(公告)号:US20100165822A1

    公开(公告)日:2010-07-01

    申请号:US12347084

    申请日:2008-12-31

    CPC classification number: G11B5/3163 G11B5/314 G11B5/6088 G11B2005/0021

    Abstract: According to one embodiment, an apparatus includes a near field transducer comprising a conductive metal film having a main body and a ridge extending from the main body and an optical waveguide for illumination of the near field transducer, a light guiding core layer of the optical waveguide being spaced from the near field transducer by less than about 100 nanometers and greater than 0 nanometers. In another embodiment, a method includes forming a near field transducer structure and removing a portion of the near field transducer structure. The method also includes forming a cladding layer adjacent a remaining portion of the near field transducer structure, wherein a portion of the cladding layer extends along the remaining portion of the near field transducer structure and forming a core layer above the cladding layer. Other apparatuses and methods are also included in the invention.

    Abstract translation: 根据一个实施例,一种装置包括近场换能器,其包括具有主体和从主体延伸的脊的导电金属膜和用于照射近场换能器的光波导,光波导的导光芯层 与近场传感器间隔小于约100纳米且大于0纳米。 在另一实施例中,一种方法包括形成近场换能器结构并去除近场换能器结构的一部分。 该方法还包括在近场换能器结构的剩余部分附近形成包覆层,其中包层的一部分沿着近场换能器结构的剩余部分延伸并在包层上方形成芯层。 本发明还包括其他装置和方法。

    Thermally assisted recording of magnetic media using an optical resonant cavity
    5.
    发明授权
    Thermally assisted recording of magnetic media using an optical resonant cavity 有权
    使用光学谐振腔对磁性介质进行热辅助记录

    公开(公告)号:US07729085B2

    公开(公告)日:2010-06-01

    申请号:US11398144

    申请日:2006-04-04

    CPC classification number: G11B5/314 G11B2005/0021

    Abstract: The media heating device of the magnetic head includes an optical resonant cavity produces a high intensity near-field optical beam of subwavelength dimension adjacent to the write pole. A suitable resonant cavity may be a spherical cavity, disk shaped cavity, ring shaped cavity, racetrack shaped cavity, micropillar cavity, photonic crystal cavity and Fabry-Perot cavity. The cavity is fabricated as a planar thin film structure in layers that are generally parallel to the magnetic pole thin film layers of the magnetic head, such that the principal axis of the resonant cavity is parallel to the air bearing surface (ABS). Optical energy is coupled into the resonant cavity through a waveguide that is placed proximate the cavity, and optical energy is coupled out of the cavity through an aperture that is placed within the cavity. A preferred embodiment may include a nano-aperture disposed between the resonant cavity and the ABS.

    Abstract translation: 磁头的介质加热装置包括光学谐振腔,产生与写入极相邻的亚波长尺寸的高强度近场光束。 合适的谐振腔可以是球形腔,盘形腔,环形空腔,跑道形空腔,微腔,光子晶体腔和法布里 - 珀罗腔。 空腔被制造为平面薄膜结构,其平行于磁头的磁极薄膜层,使得谐振腔的主轴平行于空气轴承表面(ABS)。 光能通过放置在腔附近的波导耦合到谐振腔中,并且光能通过放置在空腔内的孔耦合到空腔外。 优选实施例可以包括设置在谐振腔和ABS之间的纳米孔。

    Optical recording head including an optical resonant cavity
    6.
    发明授权
    Optical recording head including an optical resonant cavity 失效
    光学记录头包括光学谐振腔

    公开(公告)号:US07365941B2

    公开(公告)日:2008-04-29

    申请号:US11042616

    申请日:2005-01-24

    CPC classification number: G11B7/1387 G11B7/00458 G11B7/124

    Abstract: An optical recording head including a media heating device to write and read data to a heat sensitive optical media disk. The media heating device includes an optical energy resonant cavity that produces a high intensity near-field optical spot of subwavelength dimension. Optical energy is coupled into the resonant cavity through a waveguide that is placed proximate the cavity, and optical energy is coupled out of the cavity through an aperture that is placed proximate an antinode or post within the cavity. In reading data from the optical media, a photodetector is placed at the end of the waveguide. Optical energy emitted from the end of the waveguide is influenced by the reflectivity of the media data bit, and is interpreted as the data bit signal.

    Abstract translation: 一种光学记录头,包括用于向热敏光学介质盘写入和读取数据的介质加热装置。 介质加热装置包括产生亚波长尺寸的高强度近场光点的光能谐振腔。 光能通过放置在腔附近的波导耦合到谐振腔中,并且光能通过放置在腔内的波腹或柱附近的孔耦合到空腔外。 在从光学介质读取数据时,将光电检测器放置在波导的末端。 从波导末端发射的光能受媒体数据位的反射率影响,被解释为数据位信号。

    Surface inspection tool using a parabolic mirror
    7.
    发明授权
    Surface inspection tool using a parabolic mirror 失效
    表面检查工具使用抛物面镜

    公开(公告)号:US06614519B1

    公开(公告)日:2003-09-02

    申请号:US09696864

    申请日:2000-10-25

    CPC classification number: G01N21/9506

    Abstract: An inspection system using laser light directed at an off-axis parabolic mirror which focuses the beam on the surface being inspected and also serves as the collector for scattered and specular light returned from the surface is described. Specular and scattered light returned from the surface onto the parabolic mirror is divided into appropriate fields and directed onto detectors. In the preferred embodiment a polarized laser is used in conjunction with a polarizing beam splitter and a quarter-wave plate to route the reflected beam to a detector while allowing the original beam to be directed through the same optics. The parabolic mirror and selected additional components may be commonly mounted on a translatable stage which is moved along a radius of the disk when the optical inspection is being performed. Other components of the system such as the laser can remain in a fixed position. The system of the invention can be used to inspect one or both planar surfaces of the disk by providing duplication of selected components appropriately oriented with respect to the second surface.

    Abstract translation: 描述了一种使用指向离轴抛物面镜的激光的检查系统,其将光束聚焦在被检查的表面上,并且还用作用于从表面返回的散射和镜面光的收集器。 从表面返回到抛物面镜的镜面和散射光被划分成适当的场并被引导到探测器上。 在优选实施例中,偏振激光器与偏振分束器和四分之一波长板结合使用以将反射光束路由到检测器,同时允许原始光束被引导通过相同的光学器件。 抛物面镜和所选择的附加部件可以通常安装在可平移台上,当可执行光学检查时,抛物面镜沿着盘的半径移动。 诸如激光器的系统的其他部件可以保持在固定位置。 本发明的系统可用于通过提供相对于第二表面适当取向的选定部件的复制来检查盘的一个或两个平面。

    MAGNETIC RECORDING DISK DRIVE WITH SHINGLED WRITING AND RECTANGULAR OPTICAL WAVEGUIDE FOR WIDE-AREA THERMAL ASSISTANCE
    9.
    发明申请
    MAGNETIC RECORDING DISK DRIVE WITH SHINGLED WRITING AND RECTANGULAR OPTICAL WAVEGUIDE FOR WIDE-AREA THERMAL ASSISTANCE 有权
    磁带录音磁带驱动器,带有横向写入和矩形光波导,用于宽区域热辅助

    公开(公告)号:US20130028059A1

    公开(公告)日:2013-01-31

    申请号:US13190410

    申请日:2011-07-25

    CPC classification number: G11B5/314 G11B5/6088 G11B2005/0021

    Abstract: A thermally-assisted recording (TAR) disk drive uses “shingled” recording and a rectangular waveguide as a “wide-area” heat source. The waveguide generates a generally elliptically-shaped optical spot that heats an area of the recording layer extending across multiple data tracks. The waveguide core has an aspect ratio (cross-track width to along-the track thickness) that achieves the desired size of the heated area while locating the peak optical intensity close to the trailing edge of the write pole tip where writing occurs. The large cross-track width of the waveguide core increases the volume of recording layer heated by the optical spot, which reduces the rate of cooling. This moves the peak temperature point of the heated area closer to the write pole tip and reduces the temperature drop between the peak temperature and the temperature at the trailing edge of the write pole tip where writing occurs.

    Abstract translation: 热辅助记录(TAR)磁盘驱动器使用带状闪烁的记录和矩形波导作为广域热源。 波导产生大致椭圆形的光点,其加热跨越多个数据轨道的记录层的区域。 波导芯具有实现加热区域的期望尺寸的纵横比(沿轨道厚度的横越轨道宽度),同时将峰值光强度定位在写入发生时写入磁极尖端的后缘附近。 波导芯的大的横向轨道宽度增加了由光点加热的记录层的体积,这降低了冷却速度。 这使得加热区域的峰值温度点更接近写极端,并且降低峰值温度与写入磁极尖端的后缘处的温度之间的温度下降。

Patent Agency Ranking