JPS6439646A - Information recording medium - Google Patents
Information recording mediumInfo
- Publication number
- JPS6439646A JPS6439646A JP62196021A JP19602187A JPS6439646A JP S6439646 A JPS6439646 A JP S6439646A JP 62196021 A JP62196021 A JP 62196021A JP 19602187 A JP19602187 A JP 19602187A JP S6439646 A JPS6439646 A JP S6439646A
- Authority
- JP
- Japan
- Prior art keywords
- recording
- interference layer
- layer
- refractive index
- refraction
- 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.)
- Pending
Links
- 238000002310 reflectometry Methods 0.000 abstract 2
- 239000000758 substrate Substances 0.000 abstract 2
- 229910001297 Zn alloy Inorganic materials 0.000 abstract 1
- 239000003989 dielectric material Substances 0.000 abstract 1
- 239000011521 glass Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000010453 quartz Substances 0.000 abstract 1
- 230000035945 sensitivity Effects 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 1
- BSWGGJHLVUUXTL-UHFFFAOYSA-N silver zinc Chemical compound [Zn].[Ag] BSWGGJHLVUUXTL-UHFFFAOYSA-N 0.000 abstract 1
Landscapes
- Thermal Transfer Or Thermal Recording In General (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
Abstract
PURPOSE:To improve recording sensitivity and the modulation degree of a reproduction signal by constituting an interference layer of a dielectric material having 2.6-3.0 refractive index and such complex index of refraction as zero attenuation coefft. CONSTITUTION:The laminated structure is formed by joining the interference layer 200 to a transparent substrate 100 made of glass, quartz, etc., and further, joining a recording layer 300 consisting of, for example, an Ag-Zn alloy, etc., thereto. Light is projected to this medium from the size of the substrate 100. The contour lines of the reflectivity ratios before and after recording when the wavelength of the incident light is designated as 830nm, the film thickness of the interference layer 200 as 50nm, and the film thickness of the recording layer 300 as 30nm and when the refractive index of the interference layer 200 is taken at the axis of abscissa and the attenuation coefft. at the axis of ordinate are solid lines as shown in the figure and the contour lines of the recording time are dotted lines. The interference layer 200 is preferably constituted of the material having 2.6-3.0 refractive index and such complex index of refraction as zero attenuation coefft. in order to increase the reflectivity ratio before and after the recording as far as possible and to shorten the recording time as far as possible.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62196021A JPS6439646A (en) | 1987-08-05 | 1987-08-05 | Information recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62196021A JPS6439646A (en) | 1987-08-05 | 1987-08-05 | Information recording medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6439646A true JPS6439646A (en) | 1989-02-09 |
Family
ID=16350902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62196021A Pending JPS6439646A (en) | 1987-08-05 | 1987-08-05 | Information recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6439646A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0863783A (en) * | 1994-08-26 | 1996-03-08 | Nec Corp | Information recording medium |
-
1987
- 1987-08-05 JP JP62196021A patent/JPS6439646A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0863783A (en) * | 1994-08-26 | 1996-03-08 | Nec Corp | Information recording medium |
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