Rewritable dual-layer phase-change optical disk with a balanced transmittance structure

被引：11

作者：

Narumi, K ^{[1
]}

Akiyama, T ^{[1
]}

Miyagawa, N ^{[1
]}

Nishihara, T ^{[1
]}

Kitaura, H ^{[1
]}

Kojima, R ^{[1
]}

Nishiuchi, K ^{[1
]}

Yamada, N ^{[1
]}

机构：

[1] Matsushita Elect Ind Co Ltd, Opt Disk Syst Dev Ctr, Moriguchi, Osaka 5708501, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 2002年 / 41卷 / 5A期

关键词：

optical disk; rewritable; phase-change; dual-layer; transmittance;

D O I：

10.1143/JJAP.41.2925

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A rewritable dual-layer phase-change optical disk with a balanced transmittance structure for the layer located at the laser beam incident side (Layer 0) was developed. In this disk structure, transmittance of Laver 0 is almost constant, whether the layer is recorded or not. This structure was realized by adopting Ge-Sb-Te film that has appropriate optical constants, and optimizing the thickness of the dielectric layers, It is proved that this disk structure is effective in suppressing the influence of the recording state of Layer 0 on the layer beneath (Layer 1). Practical performances of the disk with this structure were confirmed for both layers. The feasibility of up to 55 GB capacity was examined for this rewritable dual-layer phase-change optical disk.

引用

页码：2925 / 2930

页数：6

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