TW200606890A - Hologram recording medium, recording/reproducing apparatus and method therefor - Google Patents

Hologram recording medium, recording/reproducing apparatus and method therefor

Info

Publication number
TW200606890A
TW200606890A TW094126023A TW94126023A TW200606890A TW 200606890 A TW200606890 A TW 200606890A TW 094126023 A TW094126023 A TW 094126023A TW 94126023 A TW94126023 A TW 94126023A TW 200606890 A TW200606890 A TW 200606890A
Authority
TW
Taiwan
Prior art keywords
hologram recording
data
recording medium
hologram
reproducing apparatus
Prior art date
Application number
TW094126023A
Other languages
Chinese (zh)
Inventor
Ikuo Aoki
Yoshitaka Takahashi
Original Assignee
Samsung Electronics Co Ltd
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
Priority claimed from KR1020050065674A external-priority patent/KR100694145B1/en
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of TW200606890A publication Critical patent/TW200606890A/en

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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/0065—Recording, reproducing or erasing by using optical interference patterns, e.g. holograms
    • 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
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/128—Modulators
    • 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
    • G11B7/1353—Diffractive elements, e.g. holograms or gratings
    • 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
    • G11B7/1372—Lenses
    • G11B7/1374—Objective lenses
    • 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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/2403—Layers; Shape, structure or physical properties thereof
    • G11B7/24035—Recording layers
    • G11B7/24044—Recording layers for storing optical interference patterns, e.g. holograms; for storing data in three dimensions, e.g. volume storage
    • 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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/2403—Layers; Shape, structure or physical properties thereof
    • G11B7/24067—Combinations of two or more layers with specific interrelation
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2223/00—Optical components
    • G03H2223/12—Amplitude mask, e.g. diaphragm, Louver filter
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2223/00—Optical components
    • G03H2223/16—Optical waveguide, e.g. optical fibre, rod
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2240/00—Hologram nature or properties
    • G03H2240/50—Parameters or numerical values associated with holography, e.g. peel strength
    • G03H2240/54—Refractive index

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Holo Graphy (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Read Only Memory (AREA)

Abstract

A hologram recording medium in which data is recorded at a high density, the input of a reference beam to an area to which data is not to be recorded of a recording layer is prevented when recording data to the hologram recording medium, and an amount of noise when reproducing the data from the hologram recording medium is reduced. The hologram recording medium includes a light velocity restriction member restricting an incidence area of a hologram recording layer, thus restricting the incidence of a reference beam onto the hologram recording layer, preventing the incidence of the reference beam onto an area to which data is not to be recorded of the hologram recording layer when recording data and reproducing the amount of noise when reproducing data.
TW094126023A 2004-08-03 2005-08-01 Hologram recording medium, recording/reproducing apparatus and method therefor TW200606890A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2004226730A JP2006047553A (en) 2004-08-03 2004-08-03 Hologram memory medium
KR1020040079207A KR20060012539A (en) 2004-08-03 2004-10-05 Hologram memory medium
KR1020050065674A KR100694145B1 (en) 2004-08-03 2005-07-20 Hologram memory medium, recording/reproducing apparatus and method therefor

Publications (1)

Publication Number Publication Date
TW200606890A true TW200606890A (en) 2006-02-16

Family

ID=36026194

Family Applications (1)

Application Number Title Priority Date Filing Date
TW094126023A TW200606890A (en) 2004-08-03 2005-08-01 Hologram recording medium, recording/reproducing apparatus and method therefor

Country Status (4)

Country Link
JP (1) JP2006047553A (en)
KR (1) KR20060012539A (en)
CN (1) CN1993743A (en)
TW (1) TW200606890A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7936513B2 (en) 2007-07-03 2011-05-03 Industrial Technology Research Institute Diffraction grating recording medium

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009080906A (en) 2007-09-26 2009-04-16 Toshiba Corp Optical information recording/reproducing apparatus, diffraction-grating fabricating apparatus, optical information recording medium, and positioning control method
EP3827293A1 (en) * 2019-10-18 2021-06-02 Google LLC Diffractive optical elements for large-field image display

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7936513B2 (en) 2007-07-03 2011-05-03 Industrial Technology Research Institute Diffraction grating recording medium

Also Published As

Publication number Publication date
CN1993743A (en) 2007-07-04
JP2006047553A (en) 2006-02-16
KR20060012539A (en) 2006-02-08

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