WO2005045815A1 - Transducteurs optiques a champ proche pour stocker des donnees optiques et magnetiques assiste thermiquement - Google Patents

Transducteurs optiques a champ proche pour stocker des donnees optiques et magnetiques assiste thermiquement Download PDF

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Publication number
WO2005045815A1
WO2005045815A1 PCT/US2003/032324 US0332324W WO2005045815A1 WO 2005045815 A1 WO2005045815 A1 WO 2005045815A1 US 0332324 W US0332324 W US 0332324W WO 2005045815 A1 WO2005045815 A1 WO 2005045815A1
Authority
WO
WIPO (PCT)
Prior art keywords
pin
electromagnetic wave
optical transducer
optical
directing
Prior art date
Application number
PCT/US2003/032324
Other languages
English (en)
Inventor
Chubing Peng
William A. Challener
Ibrahim K. Sendur
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
Priority to PCT/US2003/032324 priority Critical patent/WO2005045815A1/fr
Priority to AU2003284100A priority patent/AU2003284100A1/en
Publication of WO2005045815A1 publication Critical patent/WO2005045815A1/fr

Links

Classifications

    • 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
    • G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
    • 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
    • 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
    • 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
    • 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)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Optical Head (AREA)

Abstract

L'invention concerne un transducteur optique comprenant des moyens (40) conçus pour diriger une onde électromagnétique vers une région focale et une nanostructure (44) métallique présentant un axe longitudinal sensiblement parallèle à un champ électrique de l'onde électromagnétique, ladite nanostructure métallique étant positionnée à l'extérieur des moyens de direction de l'onde électromagnétique. Ladite onde électromagnétique produit des plasmons sur la nanostructure métallique. Un matériau (304, 306) de gaine présente un indice de réfraction différent de l'indice de réfraction des moyens de direction de l'onde électromagnétique et peut être positionnée de manière adjacente à une surface de ladite nanostructure. Des têtes d'enregistrement magnéto-optiques comprennent les transducteurs et des commandes de disques comprennent les têtes d'enregistrement magnéto-optiques.
PCT/US2003/032324 2003-10-10 2003-10-10 Transducteurs optiques a champ proche pour stocker des donnees optiques et magnetiques assiste thermiquement WO2005045815A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/US2003/032324 WO2005045815A1 (fr) 2003-10-10 2003-10-10 Transducteurs optiques a champ proche pour stocker des donnees optiques et magnetiques assiste thermiquement
AU2003284100A AU2003284100A1 (en) 2003-10-10 2003-10-10 Near-field optical transducers for thermal assisted magnetic and optical data storage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2003/032324 WO2005045815A1 (fr) 2003-10-10 2003-10-10 Transducteurs optiques a champ proche pour stocker des donnees optiques et magnetiques assiste thermiquement

Publications (1)

Publication Number Publication Date
WO2005045815A1 true WO2005045815A1 (fr) 2005-05-19

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/032324 WO2005045815A1 (fr) 2003-10-10 2003-10-10 Transducteurs optiques a champ proche pour stocker des donnees optiques et magnetiques assiste thermiquement

Country Status (2)

Country Link
AU (1) AU2003284100A1 (fr)
WO (1) WO2005045815A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2921192A1 (fr) * 2007-09-17 2009-03-20 Commissariat Energie Atomique Lentille a immersion solide et procede de realisation associe
WO2010106283A1 (fr) 2009-03-17 2010-09-23 Commissariat A L'energie Atomique Et Aux Energies Alternatives Tete de lecture haute resolution pour disque optique
US8200054B1 (en) 2009-04-19 2012-06-12 Western Digital (Fremont), Llc High efficiency grating coupling for light delivery in EAMR
US8440147B2 (en) 2008-12-30 2013-05-14 Biosurfit, S.A. Analytical rotors and methods for analysis of biological fluids
US8865005B2 (en) 2008-10-23 2014-10-21 Biosurfit, S.A. Jet deflection device
US8916112B2 (en) 2010-03-29 2014-12-23 Biosurfit, S.A. Liquid distribution and metering
US9013704B2 (en) 2009-12-22 2015-04-21 Biosurfit, S.A. Surface plasmon resonance detection system
US9933348B2 (en) 2011-12-08 2018-04-03 Biosurfit, S.A. Sequential aliqoting and determination of an indicator of sedimentation rate

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010009541A1 (en) * 1999-12-28 2001-07-26 Fuiji Xerox Co., Ltd. Optical head, magneto-optical head, disk apparatus and manufacturing method of optical head
EP1148370A2 (fr) * 2000-03-13 2001-10-24 Hitachi, Ltd. Sonde de détection optique en champ proche, microscope optique à champ proche et dispositif d'enregistrement/reproduction à sonde de détection optique en champ proche
US6479816B1 (en) * 1998-10-27 2002-11-12 Seiko Instruments Inc. Near-field optical probe
US20030015651A1 (en) * 2001-07-18 2003-01-23 Masashi Kiguchi Optical apparatuses using the near-field light
US20030072245A1 (en) * 2001-10-16 2003-04-17 Fuji Xerox Co., Ltd. Optical head and disk unit
US20030128452A1 (en) * 2002-01-07 2003-07-10 Seagate Technology Llc Write head and method for recording information on a data storage medium

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6479816B1 (en) * 1998-10-27 2002-11-12 Seiko Instruments Inc. Near-field optical probe
US20010009541A1 (en) * 1999-12-28 2001-07-26 Fuiji Xerox Co., Ltd. Optical head, magneto-optical head, disk apparatus and manufacturing method of optical head
EP1148370A2 (fr) * 2000-03-13 2001-10-24 Hitachi, Ltd. Sonde de détection optique en champ proche, microscope optique à champ proche et dispositif d'enregistrement/reproduction à sonde de détection optique en champ proche
US20030015651A1 (en) * 2001-07-18 2003-01-23 Masashi Kiguchi Optical apparatuses using the near-field light
US20030072245A1 (en) * 2001-10-16 2003-04-17 Fuji Xerox Co., Ltd. Optical head and disk unit
US20030128452A1 (en) * 2002-01-07 2003-07-10 Seagate Technology Llc Write head and method for recording information on a data storage medium

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
J.R.KREM ET.AL.: "Design of multipolar plasmon excitations in silver nanoparticles", APPLIED PHYSICAL LETTERS, vol. 77, no. 21, 20 November 2000 (2000-11-20), pages 3379 - 3381, XP002283015 *

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2921192A1 (fr) * 2007-09-17 2009-03-20 Commissariat Energie Atomique Lentille a immersion solide et procede de realisation associe
WO2009037249A1 (fr) * 2007-09-17 2009-03-26 Commissariat A L'energie Atomique Lentille a immersion solide et procede de realisation associe
US7940477B2 (en) 2007-09-17 2011-05-10 Commissariat A L'energie Atomique Et Aux Energies Alternatives Solid immersion lens and related method for making same
US8865005B2 (en) 2008-10-23 2014-10-21 Biosurfit, S.A. Jet deflection device
US8440147B2 (en) 2008-12-30 2013-05-14 Biosurfit, S.A. Analytical rotors and methods for analysis of biological fluids
WO2010106283A1 (fr) 2009-03-17 2010-09-23 Commissariat A L'energie Atomique Et Aux Energies Alternatives Tete de lecture haute resolution pour disque optique
FR2943450A1 (fr) * 2009-03-17 2010-09-24 Commissariat Energie Atomique Tete de lecture haute resolution pour disque optique
US8200054B1 (en) 2009-04-19 2012-06-12 Western Digital (Fremont), Llc High efficiency grating coupling for light delivery in EAMR
US9013704B2 (en) 2009-12-22 2015-04-21 Biosurfit, S.A. Surface plasmon resonance detection system
US8916112B2 (en) 2010-03-29 2014-12-23 Biosurfit, S.A. Liquid distribution and metering
US9933348B2 (en) 2011-12-08 2018-04-03 Biosurfit, S.A. Sequential aliqoting and determination of an indicator of sedimentation rate

Also Published As

Publication number Publication date
AU2003284100A1 (en) 2005-05-26

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