CN104050979B - 分层的光学波导和近场换能器 - Google Patents

分层的光学波导和近场换能器 Download PDF

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Publication number
CN104050979B
CN104050979B CN201410198275.0A CN201410198275A CN104050979B CN 104050979 B CN104050979 B CN 104050979B CN 201410198275 A CN201410198275 A CN 201410198275A CN 104050979 B CN104050979 B CN 104050979B
Authority
CN
China
Prior art keywords
sandwich layer
layer
refractive index
tio
waveguide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201410198275.0A
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English (en)
Chinese (zh)
Other versions
CN104050979A (zh
Inventor
黄晓岳
M·C·考茨基
赵彤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seagate Technology LLC
Original Assignee
Seagate Technology LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Seagate Technology LLC filed Critical Seagate Technology LLC
Publication of CN104050979A publication Critical patent/CN104050979A/zh
Application granted granted Critical
Publication of CN104050979B publication Critical patent/CN104050979B/zh
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
    • G02B6/122—Basic optical elements, e.g. light-guiding paths
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
    • G11B5/3109—Details
    • G11B5/313—Disposition of layers
    • G11B5/3133—Disposition of layers including layers not usually being a part of the electromagnetic transducer structure and providing additional features, e.g. for improving heat radiation, reduction of power dissipation, adaptations for measurement or indication of gap depth or other properties of the structure
    • G11B5/314—Disposition of layers including layers not usually being a part of the electromagnetic transducer structure and providing additional features, e.g. for improving heat radiation, reduction of power dissipation, adaptations for measurement or indication of gap depth or other properties of the structure where the layers are extra layers normally not provided in the transducing structure, e.g. optical layers
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/4806—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed specially adapted for disk drive assemblies, e.g. assembly prior to operation, hard or flexible disk drives
    • G11B5/4866—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed specially adapted for disk drive assemblies, e.g. assembly prior to operation, hard or flexible disk drives the arm comprising an optical waveguide, e.g. for thermally-assisted recording
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/123—Integrated head arrangements, e.g. with source and detectors mounted on the same substrate
    • G11B7/124—Integrated head arrangements, e.g. with source and detectors mounted on the same substrate the integrated head arrangements including waveguides
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B2005/0002—Special dispositions or recording techniques
    • G11B2005/0005—Arrangements, methods or circuits
    • G11B2005/0021—Thermally assisted recording using an auxiliary energy source for heating the recording layer locally to assist the magnetization reversal

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optical Integrated Circuits (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
  • Magnetic Heads (AREA)
  • Optical Head (AREA)
  • Physical Vapour Deposition (AREA)
CN201410198275.0A 2013-03-12 2014-02-11 分层的光学波导和近场换能器 Expired - Fee Related CN104050979B (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/795,623 US8681595B1 (en) 2013-03-12 2013-03-12 Layered optical waveguide and near field transducer
US13/795,623 2013-03-12

Publications (2)

Publication Number Publication Date
CN104050979A CN104050979A (zh) 2014-09-17
CN104050979B true CN104050979B (zh) 2018-03-30

Family

ID=50068941

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410198275.0A Expired - Fee Related CN104050979B (zh) 2013-03-12 2014-02-11 分层的光学波导和近场换能器

Country Status (5)

Country Link
US (2) US8681595B1 (enExample)
EP (1) EP2779164B1 (enExample)
JP (1) JP6309291B2 (enExample)
KR (1) KR101678595B1 (enExample)
CN (1) CN104050979B (enExample)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8681595B1 (en) * 2013-03-12 2014-03-25 Seagate Technology Llc Layered optical waveguide and near field transducer
US8953422B1 (en) * 2014-06-10 2015-02-10 Western Digital (Fremont), Llc Near field transducer using dielectric waveguide core with fine ridge feature
US9449627B2 (en) * 2014-12-09 2016-09-20 Seagate Technology Llc Angled waveguide
CN105506560A (zh) * 2016-01-13 2016-04-20 中国科学院上海光学精密机械研究所 提高氧化铪膜层折射率的方法
CN106199817B (zh) * 2016-07-04 2019-04-05 苏州大学 一种光学波导隐身器件
US10249333B2 (en) * 2017-08-25 2019-04-02 Headway Technologies, Inc. Single Rh layer optical field enhancer with pre-focusing structures

Citations (6)

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CN1996471A (zh) * 2006-01-04 2007-07-11 三星电子株式会社 热辅助磁记录头
CN101000770A (zh) * 2006-01-10 2007-07-18 三星电子株式会社 热辅助磁记录头及其制造方法
CN101165780A (zh) * 2006-10-17 2008-04-23 三星电子株式会社 热辅助磁记录头及包括该热辅助磁记录头的记录设备
CN101373598A (zh) * 2007-08-23 2009-02-25 Tdk株式会社 具备光波导路的热辅助磁头
CN101425296A (zh) * 2007-10-16 2009-05-06 希捷科技有限公司 用于热辅助磁记录的换能器
CN102779528A (zh) * 2011-05-06 2012-11-14 日立环球储存科技荷兰有限公司 具有叠瓦写入和宽区域热辅助的磁记录盘驱动器

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EP0641049B1 (en) 1993-08-31 1998-10-28 Fujitsu Limited An optical semiconductor device and a method of manufacturing the same
US7236332B2 (en) 2004-10-22 2007-06-26 Hitachi Global Storage Technologies Netherlands, B.V. Thermally assisted recording of magnetic using an in-gap optical resonant cavity
US7310206B2 (en) 2004-12-28 2007-12-18 Sae Magnetics (H.K.) Ltd. Magnetic thin film head with heat-assisted write section and hard disk drive incorporating same
JP4745100B2 (ja) * 2006-03-28 2011-08-10 東芝ストレージデバイス株式会社 磁気ディスク装置
JP4539672B2 (ja) 2007-03-27 2010-09-08 Ｔｄｋ株式会社 熱アシスト磁気ヘッド、ヘッドジンバルアセンブリ及びハードディスク装置
JP2010061704A (ja) * 2008-09-01 2010-03-18 Fujitsu Ltd 磁気ヘッドおよび磁気ディスク装置
US8169881B2 (en) 2008-12-31 2012-05-01 Hitachi Global Storage Technologies Netherlands B.V. Thermally assisted recording head having recessed waveguide with near field transducer and methods of making same
US8451555B2 (en) * 2009-02-24 2013-05-28 Seagate Technology Llc Recording head for heat assisted magnetic recording
US8200054B1 (en) 2009-04-19 2012-06-12 Western Digital (Fremont), Llc High efficiency grating coupling for light delivery in EAMR
US8351305B2 (en) 2009-06-22 2013-01-08 Seagate Technology Llc Notched pole design for HAMR recording
JP4881989B2 (ja) * 2009-10-15 2012-02-22 株式会社日立製作所 熱アシスト記録用磁気ヘッド及びそれを用いた磁気記録装置
US8385183B2 (en) * 2009-11-05 2013-02-26 Seagate Technology, Llc Light delivery waveguide
US8149657B2 (en) * 2010-02-23 2012-04-03 Seagate Technology Llc Optical waveguide clad material
JP5943503B2 (ja) * 2010-09-14 2016-07-05 セイコーインスツル株式会社 近接場光発生素子、及び近接場光発生素子の製造方法、近接場光ヘッド、近接場光ヘッドの製造方法並びに情報記録再生装置
US8509037B1 (en) * 2012-04-24 2013-08-13 Seagate Technology Llc Layered optical waveguide and near field transducer
US8873349B2 (en) * 2012-04-24 2014-10-28 Seagate Technology Llc Optical devices including assistant layers
US8644124B2 (en) * 2012-04-24 2014-02-04 Seagate Technology Llc Optical devices including assist layers
US8681595B1 (en) * 2013-03-12 2014-03-25 Seagate Technology Llc Layered optical waveguide and near field transducer

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1996471A (zh) * 2006-01-04 2007-07-11 三星电子株式会社 热辅助磁记录头
CN101000770A (zh) * 2006-01-10 2007-07-18 三星电子株式会社 热辅助磁记录头及其制造方法
CN101165780A (zh) * 2006-10-17 2008-04-23 三星电子株式会社 热辅助磁记录头及包括该热辅助磁记录头的记录设备
CN101373598A (zh) * 2007-08-23 2009-02-25 Tdk株式会社 具备光波导路的热辅助磁头
CN101425296A (zh) * 2007-10-16 2009-05-06 希捷科技有限公司 用于热辅助磁记录的换能器
CN102779528A (zh) * 2011-05-06 2012-11-14 日立环球储存科技荷兰有限公司 具有叠瓦写入和宽区域热辅助的磁记录盘驱动器

Also Published As

Publication number Publication date
JP6309291B2 (ja) 2018-04-11
EP2779164A2 (en) 2014-09-17
US8681595B1 (en) 2014-03-25
KR101678595B1 (ko) 2016-11-22
US9304252B2 (en) 2016-04-05
EP2779164A3 (en) 2015-04-01
US20150277039A1 (en) 2015-10-01
KR20140111945A (ko) 2014-09-22
CN104050979A (zh) 2014-09-17
JP2014175037A (ja) 2014-09-22
EP2779164B1 (en) 2017-07-26

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