Superlarge-capacity optical disk with multilayer structure fabricated using a photopolymer sheet

被引：6

作者：

Shida, N ^{[1
]}

Higuchi, T ^{[1
]}

Suga, K ^{[1
]}

Iida, T ^{[1
]}

机构：

[1] Pioneer Corp, Corp Res & Dev Labs, Tsurugashima, Saitama 3502288, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 2003年 / 42卷 / 2B期

关键词：

multilayer; photopolymer; superlarge-capacity; space layer; thickness; 100; GB; quad-layer; triple layer; dual layer;

D O I：

10.1143/JJAP.42.778

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have been studying a multilayer disk in order to realize a 12-cm-diameter optical disk with the recording capacity of 100 GB or more. We tried to fabricate a multilayer disk using a photopolymer sheet. We developed a new sheet, and confirmed the performance of this sheet. A single layer disk made using this sheet had a value of 5.3%, and a 25 GB capacity. Then we fabricated a dual layer disk. The thickness variations from the disk surface to each recording layer were +/-0.6 pm and +/-0.7 pm. These results indicated the possibility of realizing a multilayer disk for a high-numerical-aperture (high-NA) system. We will evaluate the signals reproduced from the multilayer disk in the next step.

引用

页码：778 / 783

页数：6

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