JP4042472B2 - 情報記録再生ヘッド、情報記録再生装置及び情報記録方法 - Google Patents

情報記録再生ヘッド、情報記録再生装置及び情報記録方法 Download PDF

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Publication number
JP4042472B2
JP4042472B2 JP2002160906A JP2002160906A JP4042472B2 JP 4042472 B2 JP4042472 B2 JP 4042472B2 JP 2002160906 A JP2002160906 A JP 2002160906A JP 2002160906 A JP2002160906 A JP 2002160906A JP 4042472 B2 JP4042472 B2 JP 4042472B2
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JP
Japan
Prior art keywords
recording
information
light
scatterer
recording medium
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Expired - Fee Related
Application number
JP2002160906A
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English (en)
Japanese (ja)
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JP2004005858A (ja
JP2004005858A5 (https=
Inventor
秀樹 嵯峨
拓也 松本
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Hitachi Ltd
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Hitachi Ltd
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Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP2002160906A priority Critical patent/JP4042472B2/ja
Priority to US10/354,063 priority patent/US7054234B2/en
Publication of JP2004005858A publication Critical patent/JP2004005858A/ja
Publication of JP2004005858A5 publication Critical patent/JP2004005858A5/ja
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Publication of JP4042472B2 publication Critical patent/JP4042472B2/ja
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Expired - Fee Related legal-status Critical Current

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    • 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
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1387—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector using the near-field effect
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y10/00—Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y25/00—Nanomagnetism, e.g. magnetoimpedance, anisotropic magnetoresistance, giant magnetoresistance or tunneling magnetoresistance
    • 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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/10532—Heads
    • G11B11/10534—Heads for recording by magnetising, demagnetising or transfer of magnetisation, by radiation, e.g. for thermomagnetic recording
    • G11B11/10536—Heads for recording by magnetising, demagnetising or transfer of magnetisation, by radiation, e.g. for thermomagnetic recording using thermic beams, e.g. lasers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/1055—Disposition or mounting of transducers relative to record carriers
    • G11B11/10552—Arrangements of transducers relative to each other, e.g. coupled heads, optical and magnetic head on the same base
    • G11B11/10554—Arrangements of transducers relative to each other, e.g. coupled heads, optical and magnetic head on the same base the transducers being disposed on the same side of the carrier
    • 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
    • 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
    • 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
    • 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
    • G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
    • G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
    • G11B2005/3996—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects large or giant magnetoresistive effects [GMR], e.g. as generated in spin-valve [SV] devices
    • 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
    • G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
    • G11B5/09—Digital recording

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Nanotechnology (AREA)
  • Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
JP2002160906A 2002-06-03 2002-06-03 情報記録再生ヘッド、情報記録再生装置及び情報記録方法 Expired - Fee Related JP4042472B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2002160906A JP4042472B2 (ja) 2002-06-03 2002-06-03 情報記録再生ヘッド、情報記録再生装置及び情報記録方法
US10/354,063 US7054234B2 (en) 2002-06-03 2003-01-30 Near-field high density magneto-optical recording head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002160906A JP4042472B2 (ja) 2002-06-03 2002-06-03 情報記録再生ヘッド、情報記録再生装置及び情報記録方法

Publications (3)

Publication Number Publication Date
JP2004005858A JP2004005858A (ja) 2004-01-08
JP2004005858A5 JP2004005858A5 (https=) 2005-06-23
JP4042472B2 true JP4042472B2 (ja) 2008-02-06

Family

ID=29561622

Family Applications (1)

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JP2002160906A Expired - Fee Related JP4042472B2 (ja) 2002-06-03 2002-06-03 情報記録再生ヘッド、情報記録再生装置及び情報記録方法

Country Status (2)

Country Link
US (1) US7054234B2 (https=)
JP (1) JP4042472B2 (https=)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4325172B2 (ja) * 2002-11-01 2009-09-02 株式会社日立製作所 近接場光発生プローブ及び近接場光発生装置
US7489597B2 (en) * 2004-09-27 2009-02-10 Sharp Kabushiki Kaisha Electromagnetic field generating element, information recording/reproducing head, and information recording/reproducing apparatus
JP4095623B2 (ja) 2005-04-05 2008-06-04 株式会社日立製作所 磁気光融合記録装置用ヘッド及びその製造方法
JP4081480B2 (ja) * 2005-08-19 2008-04-23 株式会社日立製作所 磁気光融合記録装置用ヘッド及び磁気光融合記録装置
US8279721B2 (en) * 2006-03-29 2012-10-02 Panasonic Corporation Near-field recording head capable of directly forming light source in slider
JP4129031B2 (ja) * 2006-06-12 2008-07-30 株式会社日立製作所 近接場光発生器及び記録再生装置
US7944780B2 (en) * 2006-12-07 2011-05-17 Konica Minolta Opto, Inc. Magnetic recording device and magnetic recording head drive mechanism having a magnetic applying section of a specific length
US7759630B2 (en) * 2006-12-26 2010-07-20 Hitachi Global Storage Technologies Netherlands B.V. Method and apparatus for the generation and control of multiple near-field light sources at subwavelength resolution
US8243557B2 (en) * 2006-12-26 2012-08-14 Hitachi Global Storage Technologies Netherlands B.V. Optimized ridge apertures for thermally assisted magnetic recording
US7821732B2 (en) * 2008-09-25 2010-10-26 Tdk Corporation Thermally assisted magnetic head having an asymmetric plasmon antenna and manufacturing method thereof
US7835102B2 (en) * 2008-09-26 2010-11-16 Tdk Corporation Heat assisted magnetic recording head comprising plasmon antenna with flat surfaces opposed to medium
US8040760B2 (en) * 2008-10-16 2011-10-18 Seagate Technology Llc Polarization near-field transducer having optical conductive blades
JP2010146662A (ja) * 2008-12-19 2010-07-01 Sony Corp 記録再生装置及び記録再生システム
US8325566B2 (en) * 2009-03-19 2012-12-04 Tdk Corporation Thermally-assisted magnetic recording head having a light source at least inclined from an opposed-to-medium surface

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3791971B2 (ja) 1996-07-02 2006-06-28 富士通株式会社 光磁気記録媒体及びその記録再生装置
US5696372A (en) * 1996-07-31 1997-12-09 Yale University High efficiency near-field electromagnetic probe having a bowtie antenna structure
JPH11126385A (ja) 1997-10-24 1999-05-11 Canon Inc 光磁気記録媒体、その製造方法、および光磁気記録再生装置
CN1172295C (zh) 1998-09-02 2004-10-20 株式会社日立制作所 信息记录/再生装置
JP2000353301A (ja) 1999-06-11 2000-12-19 Hitachi Ltd 情報記録再生装置
JP3902952B2 (ja) 2000-03-10 2007-04-11 株式会社日立グローバルストレージテクノロジーズ 光誘導型薄膜磁気ヘッド
JP3882456B2 (ja) * 2000-03-13 2007-02-14 株式会社日立製作所 近接場光プローブおよびそれを用いた近接場光学顕微鏡および光記録／再生装置
JP3903365B2 (ja) * 2001-03-29 2007-04-11 株式会社東芝 光アシスト磁気記録ヘッド及び光アシスト磁気記録装置
JP3793430B2 (ja) * 2001-07-18 2006-07-05 株式会社日立製作所 近接場光を用いた光学装置
JP4032689B2 (ja) * 2001-10-04 2008-01-16 株式会社日立製作所 近接場光を用いた測定装置／記録再生装置
KR100436292B1 (ko) * 2001-11-28 2004-06-16 한국전자통신연구원 광정보 기록/재생 헤드 및 그 제조 방법
CN1308918C (zh) * 2002-01-07 2007-04-04 希捷科技有限公司 在数据存储介质上记录信息的写入头、磁盘驱动器存储系统和方法
US7245562B2 (en) * 2003-08-25 2007-07-17 Koninklijke Philips Electronics N.V. Method and device for high-speed magnetic recording

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Publication number Publication date
JP2004005858A (ja) 2004-01-08
US20030223316A1 (en) 2003-12-04
US7054234B2 (en) 2006-05-30

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