JP4442543B2 - 光学的情報記録媒体 - Google Patents
光学的情報記録媒体 Download PDFInfo
- Publication number
- JP4442543B2 JP4442543B2 JP2005298462A JP2005298462A JP4442543B2 JP 4442543 B2 JP4442543 B2 JP 4442543B2 JP 2005298462 A JP2005298462 A JP 2005298462A JP 2005298462 A JP2005298462 A JP 2005298462A JP 4442543 B2 JP4442543 B2 JP 4442543B2
- Authority
- JP
- Japan
- Prior art keywords
- layer
- information
- transmittance
- dielectric layer
- recording medium
- 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
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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
- G11B7/24—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
- G11B7/24038—Multiple laminated 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
- G11B7/252—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
- G11B7/258—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 reflective layers
- G11B7/259—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 reflective layers based on silver
-
- 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
- G11B7/257—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 layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers
- G11B2007/25705—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 layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials
- G11B2007/2571—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 layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials containing group 14 elements except carbon (Si, Ge, Sn, Pb)
-
- 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
- G11B7/257—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 layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers
- G11B2007/25705—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 layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials
- G11B2007/25713—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 layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials containing nitrogen
-
- 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
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
Description
第二誘電体層6 環境試験による
No. 及び 屈折率 透過率 透過率の
透過率調整層8 変化量
1 NbOx 2.55 94.5 ◎
2 NbOxNy 2.53 94.4 ◎
3 NbZrOx 2.51 94.3 ◎
4 NbZrOxNy 2.49 94.3 ◎
5 NbSnOx 2.54 94.5 ◎
6 NbSnOxNy 2.50 94.3 ◎
7 NbTiOx 2.73 96.6 ◎
8 NbTiOxNy 2.70 95.7 ◎
9 ZnS−SiO2 2.35 92.1 ×
10 SiO2 1.58 70.6 ◎
No. バリア層 ターゲット材料 雰囲気ガス種 透過率〔%〕
1 GeAlN GeAl Ar+N2 49.3
2 GeAlN GeAlN Ar 49.2
3 SiN Si Ar+N2 49.1
4 SiN SiN Ar 48.9
5 SiO2 Si Ar+O2 57.6
6 SiO2 SiO2 Ar 48.9
7 Al2O3 Al Ar+O2 59.3
8 Al2O3 Al2O3 Ar 49.5
9 Ta2O5 Ta Ar+O2 58.6
10 Ta2O5 Ta2O5 Ar 49.2
11 ZrO Zr Ar+O2 64.6
12 ZrO ZrO Ar 48.7
13 HfO Hf Ar+O2 63.1
14 HfO HfO Ar 49.4
15 ZnO Zn Ar+O2 58.9
16 ZnO ZnO Ar 49.4
バリア層の消衰係数 透過率〔%〕
0 96.6
0.02 95.5
0.04 94.2
0.06 92.6
0.07 90.0
0.08 87.6
0.10 85.3
No. 膜の種類 規格化成膜速度 屈折率
1 NbOx 5.9 2.557
2 NbOxNy 5.6 2.522
3 NbZrOx 6.2 2.513
4 NbZrOxNy 5.4 2.505
5 NbSnOx 6.0 2.524
6 NbSnOxNy 5.7 2.501
7 NbTiOx 5.4 2.564
8 NbTiOxNy 5.1 2.560
9 TiO2 1 2.600
1 透明基板
2 第一誘電体層
3 第一界面層
4 記録層
5 第二界面層
6 第二誘電体層
7 金属半透過層
8 透過率調整層
9 バリア層
11 透明基板
12 金属反射層
13 第三誘電体層
14 第三界面層
15 記録層
16 第四界面層
17 第四誘電体層
21 光学分離層
31 透明シート
50 第一情報層
51 第二情報層
L レーザ光
Claims (4)
- レーザ光の照射によって情報を記録又は再生可能な第一情報層及び第二情報層と、これらの第一情報層及び第二情報層の間に位置する光学分離層とが積層された構造を備える光学的情報記録媒体において、
前記第一情報層は、前記レーザ光の照射側に設けられるとともに、前記レーザ光の照射側から少なくとも第一誘電体層、記録層、第二誘電体層、金属半透過層及び透過率調整層の順に積層された構造を有し、
前記金属半透過層の組成には銀が含まれ、前記第一誘電体層の組成には硫黄が含まれ、前記第二誘電体層の組成には硫黄が含まれず、
前記第二誘電体層の屈折率は前記第一誘電体層の屈折率と同等又はそれよりも大きく、
前記第二誘電体層及び前記透過率調整層の組成には、ニオブの酸化物又は酸窒化物と、ジルコニウム、スズ及びチタンの中から選択した少なくとも一つ以上の添加元素の酸化物又は酸窒化物とが含まれ、
前記添加元素の量は、前記ジルコニウム又は前記スズが選択された場合に16at%以下であり、前記チタンが選択された場合に55at%以下である、
ことを特徴とする光学的情報記録媒体。 - 前記金属半透過層と前記透過率調整層との間にバリア層が設けられた、
ことを特徴とする請求項1記載の光学的情報記録媒体。 - 前記バリア層は、前記レーザ光の波長が380nm〜430nmの範囲で消衰係数が0〜0.07の範囲にあり、酸素ガスを含まない雰囲気で成膜が可能な金属若しくは半金属の酸化物、窒化物又は酸窒化物からなる、
ことを特徴とする請求項2記載の光学的情報記録媒体。 - 前記バリア層は、GeAlN、SiN、SiO2、Al2O3、Ta2O5、ZrO、HfO及びZnOの中から選択された一つ若しくは二つ以上又はこれらの酸窒化物からなる、
ことを特徴とする請求項2又は3記載の光学的情報記録媒体。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005298462A JP4442543B2 (ja) | 2005-10-13 | 2005-10-13 | 光学的情報記録媒体 |
TW095136682A TW200802354A (en) | 2005-10-13 | 2006-10-03 | Optical information recording medium |
US11/549,348 US20070087155A1 (en) | 2005-10-13 | 2006-10-13 | Optical information recording medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005298462A JP4442543B2 (ja) | 2005-10-13 | 2005-10-13 | 光学的情報記録媒体 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007109303A JP2007109303A (ja) | 2007-04-26 |
JP4442543B2 true JP4442543B2 (ja) | 2010-03-31 |
Family
ID=37948456
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005298462A Expired - Fee Related JP4442543B2 (ja) | 2005-10-13 | 2005-10-13 | 光学的情報記録媒体 |
Country Status (3)
Country | Link |
---|---|
US (1) | US20070087155A1 (ja) |
JP (1) | JP4442543B2 (ja) |
TW (1) | TW200802354A (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4750844B2 (ja) * | 2006-03-31 | 2011-08-17 | パナソニック株式会社 | 情報記録媒体およびその製造方法 |
JP4661953B2 (ja) * | 2008-12-04 | 2011-03-30 | ソニー株式会社 | 光記録媒体およびその製造方法 |
KR102509032B1 (ko) * | 2018-05-09 | 2023-03-09 | 쌩-고벵 글래스 프랑스 | 다층 코팅이 구비된 투명 기판 및 이를 포함하는 단열 유리 유닛 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1480208B1 (en) * | 2003-05-20 | 2006-03-29 | Matsushita Electric Industrial Co., Ltd. | Optical information recording medium and method for manufacturing the medium |
KR101049985B1 (ko) * | 2003-08-07 | 2011-07-19 | 파나소닉 주식회사 | 광학적 정보 기록 매체와 그 제조 방법, 제조 장치, 기록재생 방법 및 기록 재생 장치 |
-
2005
- 2005-10-13 JP JP2005298462A patent/JP4442543B2/ja not_active Expired - Fee Related
-
2006
- 2006-10-03 TW TW095136682A patent/TW200802354A/zh unknown
- 2006-10-13 US US11/549,348 patent/US20070087155A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
TW200802354A (en) | 2008-01-01 |
JP2007109303A (ja) | 2007-04-26 |
US20070087155A1 (en) | 2007-04-19 |
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