DE69704276D1 - Magnetooptisches aufzeichnungssystem mit nahfeldoptik - Google Patents

Magnetooptisches aufzeichnungssystem mit nahfeldoptik

Info

Publication number
DE69704276D1
DE69704276D1 DE69704276T DE69704276T DE69704276D1 DE 69704276 D1 DE69704276 D1 DE 69704276D1 DE 69704276 T DE69704276 T DE 69704276T DE 69704276 T DE69704276 T DE 69704276T DE 69704276 D1 DE69704276 D1 DE 69704276D1
Authority
DE
Germany
Prior art keywords
near field
recording system
field optics
magnetooptic recording
magnetooptic
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
DE69704276T
Other languages
English (en)
Other versions
DE69704276T2 (de
Inventor
S Kino
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.)
Leland Stanford Junior University
Original Assignee
Leland Stanford Junior University
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 Leland Stanford Junior University filed Critical Leland Stanford Junior University
Publication of DE69704276D1 publication Critical patent/DE69704276D1/de
Application granted granted Critical
Publication of DE69704276T2 publication Critical patent/DE69704276T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • G11B7/1384—Fibre optics
    • 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
    • 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
    • G11B11/10541—Heads for reproducing
    • 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
    • G11B11/1058—Flying heads
    • 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
    • B82Y20/00—Nanooptics, e.g. quantum optics or photonic crystals
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B9/00—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor
    • G11B9/12—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor using near-field interactions; Record carriers therefor
    • G11B9/14—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor using near-field interactions; Record carriers therefor using microscopic probe means, i.e. recording or reproducing by means directly associated with the tip of a microscopic electrical probe as used in Scanning Tunneling Microscopy [STM] or Atomic Force Microscopy [AFM] for inducing physical or electrical perturbations in a recording medium; Record carriers or media specially adapted for such transducing of information
    • G11B9/1409—Heads

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Optical Couplings Of Light Guides (AREA)
  • Optical Integrated Circuits (AREA)
DE69704276T 1996-08-13 1997-08-08 Magneto-optisches Aufzeichnungssystem unter Verwendung von Nahfeldoptik Expired - Fee Related DE69704276T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/696,168 US5689480A (en) 1996-08-13 1996-08-13 Magneto-optic recording system employing near field optics
PCT/US1997/013822 WO1998007147A1 (en) 1996-08-13 1997-08-08 Magneto-optic recording system employing near field optics

Publications (2)

Publication Number Publication Date
DE69704276D1 true DE69704276D1 (de) 2001-04-19
DE69704276T2 DE69704276T2 (de) 2001-07-19

Family

ID=24795987

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69704276T Expired - Fee Related DE69704276T2 (de) 1996-08-13 1997-08-08 Magneto-optisches Aufzeichnungssystem unter Verwendung von Nahfeldoptik

Country Status (9)

Country Link
US (2) US5689480A (de)
EP (1) EP0917713B1 (de)
JP (1) JP2000501546A (de)
AU (1) AU3909697A (de)
DE (1) DE69704276T2 (de)
HK (1) HK1019175A1 (de)
ID (1) ID18011A (de)
TW (1) TW350951B (de)
WO (1) WO1998007147A1 (de)

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JPH10112036A (ja) * 1996-10-07 1998-04-28 Hitachi Maxell Ltd 記録再生装置
US5859814A (en) * 1996-10-18 1999-01-12 The Board Of Trustees Of The Leland Stanford Junior University Magneto-optic recording system and method
JPH10188301A (ja) * 1996-12-20 1998-07-21 Sony Corp 光ディスク記録再生装置および方法
US5903525A (en) * 1997-04-18 1999-05-11 Read-Rite Corporation Coil for use with magneto-optical head
US5883872A (en) * 1997-05-29 1999-03-16 The Board Of Trustees Of The Leland Stanford Junior University Near field magneto-optical recording system employing slit illumination
US5963532A (en) * 1998-01-21 1999-10-05 Terastor Corporation Polarization rotation and phase compensation in near-field electro-optical system
US5978319A (en) * 1997-11-06 1999-11-02 Read-Rite Corporation Thin electro-magnetic coil assembly for attachment to a slider
BR9806979A (pt) * 1997-11-22 2000-03-14 Samsung Electronics Co Ltda Sistema ótico catadióptrico, captador ótico e unidade de disco ótico empregando o mesmo, e disco ótico
US6069861A (en) * 1997-12-05 2000-05-30 Alliance Fiber Optics Products, Inc. High density data storage system with specifically shaped optical fiber as optical read/write head
US6324129B1 (en) 1998-01-08 2001-11-27 Seagate Technology Llc Near field magneto-optical head having read and write pinhole apertures
FR2774207B1 (fr) * 1998-01-27 2000-04-28 Thomson Csf Dispositif d'inscription/lecture optique d'un support d'information
JP4145985B2 (ja) * 1998-02-10 2008-09-03 セイコーインスツル株式会社 情報記録装置
JP4083330B2 (ja) * 1998-02-25 2008-04-30 セイコーインスツル株式会社 近視野光メモリヘッド
JPH11265520A (ja) * 1998-03-17 1999-09-28 Hitachi Ltd 近接場光ヘッド、近接場光ヘッドの加工方法および光記録再生装置
JP4146017B2 (ja) * 1998-03-24 2008-09-03 セイコーインスツル株式会社 近視野光学ヘッド
US6055220A (en) * 1998-03-31 2000-04-25 International Business Machines Corporation Optical disk data storage system with improved solid immersion lens
KR100294237B1 (ko) * 1998-04-14 2001-09-17 윤종용 카타디옵트릭 대물렌즈를 구비한 광픽업
US6687196B1 (en) * 1998-05-08 2004-02-03 Fuji Xerox Co., Lt.D. Method and apparatus for implementing high density recording on a recording medium and a method of manufacturing same
JP4020229B2 (ja) * 1998-05-11 2007-12-12 セイコーインスツル株式会社 近視野光学ヘッド
US6496468B2 (en) * 1998-05-29 2002-12-17 Terastor Corp. Beam focusing in near-field optical recording and reading
JP2000011388A (ja) * 1998-06-19 2000-01-14 Sony Corp 光情報記録再生装置および光情報記録再生方法
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US6377535B1 (en) 1998-07-06 2002-04-23 Read-Rite Corporation High numerical aperture optical focusing device having a conical incident facet and a parabolic reflector for use in data storage systems
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JP2000090506A (ja) * 1998-09-11 2000-03-31 Asahi Optical Co Ltd 光ディスク装置
JP4157204B2 (ja) * 1998-10-19 2008-10-01 セイコーインスツル株式会社 情報再生装置、情報記録装置、情報再生方法および情報記録方法
EP1061510B1 (de) 1998-11-09 2006-01-11 Seiko Instruments Inc. Nahfeldabtastkopf und herstellungsverfahren
US6094803A (en) * 1999-01-21 2000-08-01 Read-Rite Corporation Wafer processing techniques for near field magneto-optical head
JP2000223767A (ja) 1999-02-01 2000-08-11 Agency Of Ind Science & Technol 近接場光発生素子及び光ヘッド
JP3901867B2 (ja) 1999-02-08 2007-04-04 富士フイルム株式会社 近接場光記録再生装置
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JP2000276805A (ja) 1999-03-19 2000-10-06 Fujitsu Ltd 光学ヘッドおよびこれに用いるコイル組立体
US6185051B1 (en) 1999-06-23 2001-02-06 Read-Rite Corporation High numerical aperture optical focusing device for use in data storage systems
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Also Published As

Publication number Publication date
US5982716A (en) 1999-11-09
AU3909697A (en) 1998-03-06
US5689480A (en) 1997-11-18
ID18011A (id) 1998-02-19
HK1019175A1 (en) 2000-01-14
EP0917713B1 (de) 2001-03-14
TW350951B (en) 1999-01-21
EP0917713A1 (de) 1999-05-26
JP2000501546A (ja) 2000-02-08
WO1998007147A1 (en) 1998-02-19
DE69704276T2 (de) 2001-07-19

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