JP7492037B2 - 光メモリ、光回折素子、及び、記録方法 - Google Patents

光メモリ、光回折素子、及び、記録方法 Download PDF

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Publication number
JP7492037B2
JP7492037B2 JP2022572902A JP2022572902A JP7492037B2 JP 7492037 B2 JP7492037 B2 JP 7492037B2 JP 2022572902 A JP2022572902 A JP 2022572902A JP 2022572902 A JP2022572902 A JP 2022572902A JP 7492037 B2 JP7492037 B2 JP 7492037B2
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Japan
Prior art keywords
optical
optical memory
nanoparticles
light
diffraction element
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JP2022572902A
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Japanese (ja)
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JPWO2022145084A1 (enExample
Inventor
雄一朗 九内
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Fujikura Ltd
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Fujikura Ltd
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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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/0045—Recording
    • G11B7/00454—Recording involving phase-change effects
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
    • G11C13/0002—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using resistive RAM [RRAM] elements
    • G11C13/0004—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using resistive RAM [RRAM] elements comprising amorphous/crystalline phase transition cells
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction 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
    • G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
    • G11B7/0033—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with cards or other card-like flat carriers, e.g. flat sheets of optical film
    • 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
    • G11B7/1365—Separate or integrated refractive elements, e.g. wave plates
    • G11B7/1367—Stepped phase plates
    • 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
    • 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
    • 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/253—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Inorganic Chemistry (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)
JP2022572902A 2020-12-28 2021-08-20 光メモリ、光回折素子、及び、記録方法 Active JP7492037B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2020219578 2020-12-28
JP2020219578 2020-12-28
PCT/JP2021/030685 WO2022145084A1 (ja) 2020-12-28 2021-08-20 光メモリ、光回折素子、及び、記録方法

Publications (2)

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JPWO2022145084A1 JPWO2022145084A1 (enExample) 2022-07-07
JP7492037B2 true JP7492037B2 (ja) 2024-05-28

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JP2022572902A Active JP7492037B2 (ja) 2020-12-28 2021-08-20 光メモリ、光回折素子、及び、記録方法

Country Status (3)

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US (1) US12142307B2 (enExample)
JP (1) JP7492037B2 (enExample)
WO (1) WO2022145084A1 (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12142307B2 (en) * 2020-12-28 2024-11-12 Fujikura Ltd. Optical memory, optical diffraction element, and recording method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005285162A (ja) 2004-03-26 2005-10-13 Ricoh Co Ltd 光記録情報記録媒体
JP3793040B2 (ja) 2001-05-09 2006-07-05 株式会社東芝 記録媒体およびその製造方法
JP2010531995A (ja) 2007-06-26 2010-09-30 ヒューレット−パッカード デベロップメント カンパニー エル．ピー． 電界強化構造、及び該構造を利用した検出装置
WO2011010447A1 (ja) 2009-07-21 2011-01-27 パナソニック株式会社 情報記録媒体、光学情報記録再生装置、光学情報記録再生方法及び情報記録媒体の製造方法
WO2013014935A1 (ja) 2011-07-27 2013-01-31 パナソニック株式会社 記録媒体、光情報装置及び記録媒体の製造方法
JP2013125259A (ja) 2011-12-16 2013-06-24 Canon Inc 回折光学素子、光学系および光学機器

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6387530B1 (en) * 1999-08-27 2002-05-14 Seagate Technology Llc Patterned magnetic media via thermally induced phase transition
JP2001325745A (ja) 2000-05-16 2001-11-22 Sony Corp 光学記録媒体と、その再生装置および記録再生装置
JP2001347756A (ja) * 2000-06-06 2001-12-18 Fuji Photo Film Co Ltd 光記録媒体とこれを用いた光記録方法
WO2005020221A2 (en) * 2003-08-20 2005-03-03 Koninklijke Philips Electronics N.V. Optical record carrier
US8422197B2 (en) * 2009-07-15 2013-04-16 Applied Nanotech Holdings, Inc. Applying optical energy to nanoparticles to produce a specified nanostructure
US20110297358A1 (en) * 2010-06-07 2011-12-08 The Boeing Company Nano-coating thermal barrier and method for making the same
US12142307B2 (en) * 2020-12-28 2024-11-12 Fujikura Ltd. Optical memory, optical diffraction element, and recording method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3793040B2 (ja) 2001-05-09 2006-07-05 株式会社東芝 記録媒体およびその製造方法
JP2005285162A (ja) 2004-03-26 2005-10-13 Ricoh Co Ltd 光記録情報記録媒体
JP2010531995A (ja) 2007-06-26 2010-09-30 ヒューレット−パッカード デベロップメント カンパニー エル．ピー． 電界強化構造、及び該構造を利用した検出装置
WO2011010447A1 (ja) 2009-07-21 2011-01-27 パナソニック株式会社 情報記録媒体、光学情報記録再生装置、光学情報記録再生方法及び情報記録媒体の製造方法
WO2013014935A1 (ja) 2011-07-27 2013-01-31 パナソニック株式会社 記録媒体、光情報装置及び記録媒体の製造方法
JP2013125259A (ja) 2011-12-16 2013-06-24 Canon Inc 回折光学素子、光学系および光学機器

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JPWO2022145084A1 (enExample) 2022-07-07
WO2022145084A1 (ja) 2022-07-07
US12142307B2 (en) 2024-11-12

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