JP5491006B2 - 統合位相マスクを有するホログラフィ記憶媒体およびそのシステム - Google Patents
統合位相マスクを有するホログラフィ記憶媒体およびそのシステム Download PDFInfo
- Publication number
- JP5491006B2 JP5491006B2 JP2008173274A JP2008173274A JP5491006B2 JP 5491006 B2 JP5491006 B2 JP 5491006B2 JP 2008173274 A JP2008173274 A JP 2008173274A JP 2008173274 A JP2008173274 A JP 2008173274A JP 5491006 B2 JP5491006 B2 JP 5491006B2
- Authority
- JP
- Japan
- Prior art keywords
- storage medium
- holographic storage
- phase
- phase pattern
- phase mask
- 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
Links
- 230000007935 neutral effect Effects 0.000 claims description 22
- 230000003287 optical effect Effects 0.000 claims description 19
- 238000001093 holography Methods 0.000 claims description 5
- 239000010410 layer Substances 0.000 description 35
- 238000013500 data storage Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000001427 coherent effect Effects 0.000 description 4
- 230000001788 irregular Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000011232 storage material Substances 0.000 description 4
- 239000013078 crystal Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000015654 memory Effects 0.000 description 3
- 239000011241 protective layer Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
Images
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
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/02—Details of features involved during the holographic process; Replication of holograms without interference recording
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/02—Details of features involved during the holographic process; Replication of holograms without interference recording
- G03H1/0252—Laminate comprising a hologram layer
- G03H1/0256—Laminate comprising a hologram layer having specific functional layer
-
- 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
- G11B7/24056—Light transmission layers lying on the light entrance side and being thinner than the substrate, e.g. specially adapted for Blu-ray® discs
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H2223/00—Optical components
- G03H2223/13—Phase mask
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Holo Graphy (AREA)
- Optical Recording Or Reproduction (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
Description
2 コヒーレント光源(レーザダイオード)
3 光ビーム
4 コリメーティングレンズ
5 第1のビームスプリッタ
6 空間光変調器
7,11 物体ビーム
8 参照ビーム
9 対物レンズ
10 ホログラフィ記憶媒体
20 カバー層
21 位相マスク層
22 ホログラフィ記憶材料層
23 反射層
24 基板
25 主領域(位相パターン領域)
26 中立領域
27 ホログラム
28 方向
Claims (8)
- 複数のホログラムを含むホログラフィ記憶層の上に位相マスク層を有するホログラフィ記憶媒体であって、前記位相マスク層は、位相パターン領域および位相パターンを持たない中立領域を有する、ホログラフィ記憶媒体と、前記ホログラフィ記憶媒体から読み出し、および/または、前記ホログラフィ記憶媒体に書き込むための装置であって、前記装置は、参照ビームを生成し、または、物体ビームと前記参照ビームとを生成する光源を有する、装置と、を含むシステムであって、前記参照ビームおよび前記物体ビームは、オブジェクトレンズにより前記ホログラフィ記憶媒体に焦点を合わせられる、システムであって、
位相変動を前記参照ビームにインプリントするために、前記物体ビームまたは復元された物体ビームが前記位相マスク層の中立領域に完全に入射しかつ前記参照ビームが前記位相マスク層の位相パターンに完全に入射するように、前記参照ビームは、前記物体ビームまたは前記復元された物体ビームの光路に対して傾いて配置されていることを特徴とするシステム。 - 前記ホログラフィ記憶媒体はさらに、前記位相マスク層の上にカバー層を有することを特徴とする請求項1に記載のシステム。
- 前記ホログラフィ記憶媒体は、ディスク形記憶媒体であることを特徴とする請求項1または2に記載のシステム。
- 前記位相パターン領域は、円環、螺旋、または、円環もしくは螺旋状に配置された複数の個々の位相パターン領域であることを特徴とする請求項3に記載のシステム。
- 前記中立領域は、円環、螺旋、または、円環もしくは螺旋状に配置された複数の個々の位相パターン領域であることを特徴とする請求項3に記載のシステム。
- 前記ホログラフィ記憶媒体は、カード形記憶媒体であることを特徴とする請求項1または2に記載のシステム。
- 前記位相パターン領域は、複数の線、または、複数の線上に配置された複数の個々の位相パターン領域であることを特徴とする請求項6に記載のシステム。
- 前記位相パターン領域は、複数の線、または、複数の線上に配置された複数の個々の位相パターン領域であることを特徴とする請求項6に記載のシステム。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07111511A EP2012310A1 (en) | 2007-07-02 | 2007-07-02 | Holographic storage medium with integrated phase mask |
EP07111511.7 | 2007-07-02 |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2009015328A JP2009015328A (ja) | 2009-01-22 |
JP2009015328A5 JP2009015328A5 (ja) | 2011-08-18 |
JP5491006B2 true JP5491006B2 (ja) | 2014-05-14 |
Family
ID=38698681
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008173274A Expired - Fee Related JP5491006B2 (ja) | 2007-07-02 | 2008-07-02 | 統合位相マスクを有するホログラフィ記憶媒体およびそのシステム |
Country Status (5)
Country | Link |
---|---|
US (1) | US8116185B2 (ja) |
EP (2) | EP2012310A1 (ja) |
JP (1) | JP5491006B2 (ja) |
CN (1) | CN101339784B (ja) |
TW (1) | TWI433143B (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100325513A1 (en) * | 2009-06-18 | 2010-12-23 | Peter Donegan | Integrated control electronics (ice) for a holographic storage system |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2363279C (en) * | 2001-11-16 | 2012-11-06 | Utar Scientific Inc. | Waveguide multilayer holographic data storage |
US6844949B2 (en) * | 2002-11-05 | 2005-01-18 | Daewoo Electronics Corporation | Method and apparatus for storing and retrieving digital page data |
US7239594B2 (en) * | 2003-02-07 | 2007-07-03 | Imation Corp. | Self-referenced holography using element formed on a holographic medium |
JP4267407B2 (ja) * | 2003-08-28 | 2009-05-27 | Tdk株式会社 | ホログラフィック記録媒体、その製造方法、ホログラフィック記録再生システム |
JP2005134659A (ja) * | 2003-10-30 | 2005-05-26 | Nitto Denko Corp | ホログラム多重記録装置およびホログラム多重記録方法ならびにホログラム再生方法 |
US20050286386A1 (en) * | 2004-06-29 | 2005-12-29 | Edwards Jathan D | Dichroic coating for holographic data storage media |
JP2006039160A (ja) * | 2004-07-27 | 2006-02-09 | Sony Corp | 記録媒体及び記録媒体の製造方法 |
JP2007025367A (ja) * | 2005-07-19 | 2007-02-01 | Sony Corp | ホログラム記録装置及びホログラム記録方法 |
-
2007
- 2007-07-02 EP EP07111511A patent/EP2012310A1/en not_active Withdrawn
-
2008
- 2008-06-19 US US12/214,531 patent/US8116185B2/en not_active Expired - Fee Related
- 2008-06-20 TW TW097122965A patent/TWI433143B/zh active
- 2008-06-23 EP EP08305298A patent/EP2015296B1/en not_active Expired - Fee Related
- 2008-07-02 CN CN2008101319536A patent/CN101339784B/zh not_active Expired - Fee Related
- 2008-07-02 JP JP2008173274A patent/JP5491006B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US8116185B2 (en) | 2012-02-14 |
EP2012310A1 (en) | 2009-01-07 |
TWI433143B (zh) | 2014-04-01 |
CN101339784A (zh) | 2009-01-07 |
TW200903464A (en) | 2009-01-16 |
EP2015296A2 (en) | 2009-01-14 |
US20090010134A1 (en) | 2009-01-08 |
CN101339784B (zh) | 2012-04-18 |
EP2015296B1 (en) | 2012-03-28 |
JP2009015328A (ja) | 2009-01-22 |
EP2015296A3 (en) | 2009-01-21 |
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