System aspects of dual-layer phase-change recording with high numerical aperture optics and blue laser

被引：8
|
作者：
Richter, H
Hofmann, H
Knittel, J
Kawakubo, O
Kashiwagi, T
Mijiritskii, A
Hellmig, J
机构：
[1] Thomson Multimedia, Res & Innovat, D-78003 Villingen Schwenningen, Germany
[2] Sony Corp, Opt Media Lab, Shinagawa Ku, Tokyo 1410001, Japan
[3] Philips Res Labs, NL-5656 AA Eindhoven, Netherlands
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 2003年 / 42卷 / 2B期
关键词：
dual-layer phase-change recording; Blu-ray disc; optical pickup; beam shaping; spherical aberration compensation; liquid crystal wave front modulator; laser noise; detector noise;
D O I：
10.1143/JJAP.42.956
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
In this publication, key technologies for blue laser recording and dual layer phase-change disks with a total capacity of 50 Gbytes are explained and system margins are evaluated. Key challenges are the phase-change recording layer design, a robust read and write system with low intrinsic noise and the optical pickup design including, e.g., high numerical aperture (NA) objective lens, spherical aberration compensation devices and beam shaping optics. Blue-laser dual-layer technology will be emerging as the next-generation optical data storage standard beyond compact discs (CDs) and digital versatile discs (DVDs).
引用
收藏
页码：956 / 960
页数：5
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