公开(公告)号：US07759630B2

公开(公告)日：2010-07-20

申请号：US11645827

申请日：2006-12-26

申请人： Hendrik F. Hamann ,  Chie Ching Poon ,  Timothy Carl Strand

发明人： Hendrik F. Hamann ,  Chie Ching Poon ,  Timothy Carl Strand

IPC分类号： H01J3/14 ,  H01J5/16

CPC分类号： G01Q60/22 ,  G01J3/10 ,  G11B7/1387 ,  Y10S977/892

摘要： Methods and devices for generating multiple, closely spaced, independently controlled near-field light sources are disclosed. By providing an aperture having at least two, orthogonally oriented ridge structures, two or more closely spaced near-field light sources can be generated by controlling the polarization direction of the illuminating radiation. Control of the shape of the aperture, and relative dimensions of the ridge structures allows optimization of the relative intensities of the near-field sources.

摘要翻译： 公开了用于产生多个，紧密间隔的独立控制的近场光源的方法和装置。 通过提供具有至少两个正交定向的脊结构的孔，可以通过控制照明辐射的偏振方向来产生两个或更多个紧密间隔的近场光源。 孔的形状的控制和脊结构的相对尺寸允许优化近场源的相对强度。

公开(公告)号：US20080149809A1

公开(公告)日：2008-06-26

申请号：US11645827

申请日：2006-12-26

申请人： Hendrik F. Hamann ,  Chie Ching Poon ,  Timothy Carl Strand

发明人： Hendrik F. Hamann ,  Chie Ching Poon ,  Timothy Carl Strand

IPC分类号： G01J1/20

CPC分类号： G01Q60/22 ,  G01J3/10 ,  G11B7/1387 ,  Y10S977/892

摘要： Methods and devices for generating multiple, closely spaced, independently controlled near-field light sources are disclosed. By providing an aperture having at least two, orthogonally oriented ridge structures, two or more closely spaced near-field light sources can be generated by controlling the polarization direction of the illuminating radiation. Control of the shape of the aperture, and relative dimensions of the ridge structures allows optimization of the relative intensities of the near-field sources.

摘要翻译： 公开了用于产生多个，紧密间隔的独立控制的近场光源的方法和装置。 通过提供具有至少两个正交定向的脊结构的孔，可以通过控制照明辐射的偏振方向来产生两个或更多个紧密间隔的近场光源。 孔的形状的控制和脊结构的相对尺寸允许优化近场源的相对强度。

公开(公告)号：US07310205B2

公开(公告)日：2007-12-18

申请号：US10955691

申请日：2004-09-30

申请人： Yimin Hsu ,  Chie Ching Poon ,  Timothy Carl Strand

发明人： Yimin Hsu ,  Chie Ching Poon ,  Timothy Carl Strand

IPC分类号： G11B5/127

CPC分类号： G11B5/314 ,  G11B5/02 ,  G11B5/1278 ,  G11B2005/0005 ,  G11B2005/0021

摘要： A magnetic head including a media heating device including an optical cavity resonator that produces a high intensity near-field optical beam adjacent to the write pole. 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. The write pole tip may serve as the post in certain embodiments. The media heating device is preferably fabricated between the first and second magnetic pole layers of a perpendicular magnetic head and close to the ABS surface of the head. An alternative embodiment may include a near field aperture disposed between the resonant cavity and the ABS.

摘要翻译： 一种磁头，包括介质加热装置，该介质加热装置包括产生与写入极相邻的高强度近场光束的光腔谐振器。 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。 在某些实施例中，写极尖可以用作柱。 介质加热装置优选地制造在垂直磁头的第一和第二磁极层之间并且靠近头部的ABS表面。 替代实施例可以包括设置在谐振腔和ABS之间的近场孔。

公开(公告)号：US07729085B2

公开(公告)日：2010-06-01

申请号：US11398144

申请日：2006-04-04

申请人： Xuhui Jin ,  Chie Ching Poon ,  Timothy Carl Strand ,  Henry Hung Yang

发明人： Xuhui Jin ,  Chie Ching Poon ,  Timothy Carl Strand ,  Henry Hung Yang

IPC分类号： G11B5/02 ,  G11B5/127 ,  G11B7/00 ,  G11B11/00

CPC分类号： G11B5/314 ,  G11B2005/0021

摘要： 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.

摘要翻译： 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。

公开(公告)号：US07365941B2

公开(公告)日：2008-04-29

申请号：US11042616

申请日：2005-01-24

申请人： Chie Ching Poon ,  Timothy Carl Strand

发明人： Chie Ching Poon ,  Timothy Carl Strand

IPC分类号： G11B11/22

CPC分类号： G11B7/1387 ,  G11B7/00458 ,  G11B7/124

摘要： 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.

摘要翻译： 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。

公开(公告)号：US07649677B2

公开(公告)日：2010-01-19

申请号：US11398170

申请日：2006-04-04

申请人： Xuhui Jin ,  Chie Ching Poon ,  Timothy Carl Strand ,  Henry Hung Yang

发明人： Xuhui Jin ,  Chie Ching Poon ,  Timothy Carl Strand ,  Henry Hung Yang

IPC分类号： G02F2/00 ,  G11B19/02 ,  G02B6/10 ,  G02B6/12

CPC分类号： G11B5/314 ,  G11B5/02 ,  G11B2005/0005 ,  G11B2005/0021

摘要： A subwavelength aperture includes a plurality of ridges that project from an aperture sidewall into the aperture opening. The ridges may be closely spaced such that the hot spots associated with the ridges are likewise closely spaced and create an elongated hot spot. The subwavelength aperture of the present invention may be adapted for use in a magnetic head of a hard disk drive for improved thermally assisted recording (TAR) of magnetic data bits. Such a magnetic head may include an optical resonant cavity that is fabricated within the magnetic head structure.

摘要翻译： 亚波长孔径包括从孔侧壁突出到孔口中的多个脊。 脊可以紧密地间隔开，使得与脊相关联的热点同样紧密地间隔开并产生细长的热点。 本发明的亚波长孔径可以适用于硬盘驱动器的磁头，用于改善磁数据位的热辅助记录（TAR）。 这样的磁头可以包括在磁头结构内制造的光学谐振腔。

公开(公告)号：US08416646B2

公开(公告)日：2013-04-09

申请号：US13190410

申请日：2011-07-25

申请人： Fu-Ying Huang ,  Jia-Yang Juang ,  Hal J. Rosen ,  Barry Cushing Stipe ,  Timothy Carl Strand ,  Petrus Antonius VanDerHeijden

发明人： Fu-Ying Huang ,  Jia-Yang Juang ,  Hal J. Rosen ,  Barry Cushing Stipe ,  Timothy Carl Strand ,  Petrus Antonius VanDerHeijden

IPC分类号： G11B11/00

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

摘要： 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.

摘要翻译： 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。

公开(公告)号：US08169881B2

公开(公告)日：2012-05-01

申请号：US12347084

申请日：2008-12-31

申请人： Hamid Balamane ,  Thomas Dudley Boone, Jr. ,  Neil Leslie Robertson ,  Barry Cushing Stipe ,  Timothy Carl Strand

发明人： Hamid Balamane ,  Thomas Dudley Boone, Jr. ,  Neil Leslie Robertson ,  Barry Cushing Stipe ,  Timothy Carl Strand

IPC分类号： G11B7/135

CPC分类号： G11B5/3163 ,  G11B5/314 ,  G11B5/6088 ,  G11B2005/0021

摘要： 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.

摘要翻译： 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。

公开(公告)号：US08107326B1

公开(公告)日：2012-01-31

申请号：US12946420

申请日：2010-11-15

申请人： Toshiki Hirano ,  Barry Cushing Stipe ,  Timothy Carl Strand

发明人： Toshiki Hirano ,  Barry Cushing Stipe ,  Timothy Carl Strand

IPC分类号： G11B11/00

CPC分类号： G11B5/314 ,  G11B5/6088 ,  G11B2005/0005 ,  G11B2005/0021

摘要： A thermally-assisted recording (TAR) slider has an integrated TAR head and an integrated laser diode. The laser diode may be an external-cavity VCSEL that includes a semiconductor substrate with the VCSEL formed on one surface, an external cavity on the opposite surface, and an output third mirror on the output surface of the external cavity. 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. A carrier is attached to the slider and has a base portion that supports the external-cavity VCSEL so that the linear path of its output laser beam is aligned with and oriented orthogonal to the plane of the grating coupler. The grating coupler receives the laser radiation and turns it 90 degrees into the waveguide, which directs the laser radiation to the NFT at the ABS.

摘要翻译： 热辅助记录（TAR）滑块具有集成的TAR头和集成的激光二极管。 激光二极管可以是外腔VCSEL，其包括在一个表面上形成有VCSEL的半导体衬底，在相对表面上的外部空腔，以及在外部空腔的输出表面上的输出第三反射镜。 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。 载体附接到滑块，并且具有支撑外腔VCSEL的基部，使得其输出激光束的线性路径与光栅耦合器的平面对齐并定向。 光栅耦合器接收激光辐射并将其转动90度到波导中，其将激光辐射引导到ABS处的NFT。

公开(公告)号：US07791839B2

公开(公告)日：2010-09-07

申请号：US11532084

申请日：2006-09-14

申请人： James Terrence Olson ,  Barry Cushing Stipe ,  Timothy Carl Strand

发明人： James Terrence Olson ,  Barry Cushing Stipe ,  Timothy Carl Strand

IPC分类号： G11B5/60 ,  G11B5/127

CPC分类号： G11B5/314 ,  G11B5/02 ,  G11B5/3116 ,  G11B5/3123 ,  G11B2005/0002 ,  G11B2005/0021

摘要： A thermally-assisted perpendicular magnetic recording head and system has a head carrier that supports an optical channel for the transmission of radiation to the recording layer, a write pole for directing a magnetic field to the recording layer, and an electrical coil for inducing the magnetic field from the write pole. The optical channel has a radiation exit face with an aperture at the recording-layer-facing surface of the head carrier. The write pole has a pole tip with an end face that is recessed from the recording-layer-facing surface. The write pole tip is tapered down to the end faces. The pole tip taper and the recession of the end face concentrates the write field at the middle of the perpendicular magnetic recording layer where the radiation from the optical channel is incident. The characteristic dimension of the aperture and the spacing between the aperture and the recording layer are both less than the wavelength of the radiation. The radiation source may be a laser diode mounted to the head carrier.

摘要翻译： 热辅助垂直磁记录头和系统具有头托架，其支撑用于将辐射传输到记录层的光通道，用于将磁场引导到记录层的写磁极和用于引导磁场的电线圈 字段从写柱。 光通道具有在头托架的面向记录层的表面上具有孔的辐射出射面。 写极具有极尖，端面从面向记录层的表面凹入。 写磁极尖端朝向端面逐渐变细。 极尖锥度和端面的凹陷将写入场集中在垂直磁记录层的中心处，其中来自光通道的辐射入射。 孔径的特征尺寸和孔径与记录层之间的间距均小于辐射波长。 辐射源可以是安装到头部托架的激光二极管。