KR101678595B1 - 레이어드 광학 도파관 및 근접장 트랜스듀서 - Google Patents

레이어드 광학 도파관 및 근접장 트랜스듀서 Download PDF

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Publication number
KR101678595B1
KR101678595B1 KR1020140015536A KR20140015536A KR101678595B1 KR 101678595 B1 KR101678595 B1 KR 101678595B1 KR 1020140015536 A KR1020140015536 A KR 1020140015536A KR 20140015536 A KR20140015536 A KR 20140015536A KR 101678595 B1 KR101678595 B1 KR 101678595B1
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South Korea
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tio
index
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layers
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Korean (ko)
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KR20140111945A (ko
Inventor
시아오유 후앙
마이클 씨. 카우치
통 자오
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시게이트 테크놀로지 엘엘씨
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    • 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
    • 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
    • G11B5/127—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
    • 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

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  • 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)
  • Physical Vapour Deposition (AREA)
  • Optical Head (AREA)
KR1020140015536A 2013-03-12 2014-02-11 레이어드 광학 도파관 및 근접장 트랜스듀서 Expired - Fee Related KR101678595B1 (ko)

Applications Claiming Priority (2)

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

Publications (2)

Publication Number Publication Date
KR20140111945A KR20140111945A (ko) 2014-09-22
KR101678595B1 true KR101678595B1 (ko) 2016-11-22

Family

ID=50068941

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020140015536A Expired - Fee Related KR101678595B1 (ko) 2013-03-12 2014-02-11 레이어드 광학 도파관 및 근접장 트랜스듀서

Country Status (5)

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

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 (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011086338A (ja) 2009-10-15 2011-04-28 Hitachi Ltd 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
JP2012084214A (ja) 2010-09-14 2012-04-26 Seiko Instruments Inc 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
US8200054B1 (en) 2009-04-19 2012-06-12 Western Digital (Fremont), Llc High efficiency grating coupling for light delivery in EAMR

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69414208T2 (de) 1993-08-31 1999-03-25 Fujitsu Ltd., Kawasaki, Kanagawa Optischer Halbleitervorrichtung und Herstellungsverfahren
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
KR100682954B1 (ko) * 2006-01-04 2007-02-15 삼성전자주식회사 열보조 자기기록 헤드
KR100738096B1 (ko) * 2006-01-10 2007-07-12 삼성전자주식회사 열보조 자기기록헤드 및 그 제조방법
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
KR100803218B1 (ko) * 2006-10-17 2008-02-14 삼성전자주식회사 열보조 자기기록 헤드 및 이를 구비한 기록장치
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
JP2009054205A (ja) * 2007-08-23 2009-03-12 Tdk Corp 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
US7440660B1 (en) * 2007-10-16 2008-10-21 Seagate Technology Llc Transducer for heat assisted magnetic recording
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
US8351305B2 (en) 2009-06-22 2013-01-08 Seagate Technology Llc Notched pole design for HAMR recording
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
US8270256B1 (en) * 2011-05-06 2012-09-18 Hitachi Global Storage Technologies Netherland B.V. Magnetic recording disk drive with shingled writing and wide-area thermal assistance
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
US8509037B1 (en) * 2012-04-24 2013-08-13 Seagate Technology Llc Layered optical waveguide and near field transducer
US8681595B1 (en) * 2013-03-12 2014-03-25 Seagate Technology Llc Layered optical waveguide and near field transducer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8200054B1 (en) 2009-04-19 2012-06-12 Western Digital (Fremont), Llc High efficiency grating coupling for light delivery in EAMR
JP2011086338A (ja) 2009-10-15 2011-04-28 Hitachi Ltd 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
JP2012084214A (ja) 2010-09-14 2012-04-26 Seiko Instruments Inc 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

Also Published As

Publication number Publication date
EP2779164A3 (en) 2015-04-01
JP2014175037A (ja) 2014-09-22
US9304252B2 (en) 2016-04-05
US20150277039A1 (en) 2015-10-01
US8681595B1 (en) 2014-03-25
CN104050979A (zh) 2014-09-17
JP6309291B2 (ja) 2018-04-11
CN104050979B (zh) 2018-03-30
KR20140111945A (ko) 2014-09-22
EP2779164B1 (en) 2017-07-26
EP2779164A2 (en) 2014-09-17

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