Premastered optical disk by superresolution using rear aperture detection

被引：38

作者：

Kasami, Y

Yasuda, K

Ono, M

Fukumoto, A

Kaneko, M

机构：

[1] Research Center, Sony Corporation, Shinagawa-ku, Tokyo 141

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1996年 / 35卷 / 1B期

关键词：

premastered optical disk by superresolution (PSR); rear aperture detection (RAD); high-density recording; chalcogenide; low crosstalk; eight-to-fourteen modulation (EFM);

D O I：

10.1143/JJAP.35.423

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Premastered optical disk by superresolution (PSR) using rear aperture detection (RAD) has been realized. The PSR disk has a chalcogenide material. Using PSR by RAD with a current CD system, we demonstrated the feasibility of increasing both the linear density and the track density of read only memory (ROM) optical disks. By superresolution in the linear direction, a high C/N of 47 dB was obtained for a pit length of 0.3 mu m which is beyond the optical limit. Furthermore, by superresolution in the track direction, a low crosstalk of -38 dB and a wider margin of radial skew angle compared to conventional detection were obtained for a track pitch of 1.1 mu m.

引用

页码：423 / 428

页数：6