Study of the multi-level reflection modulation recording for phase change optical disks

被引:15
作者
Shi, LP [1 ]
Chong, TC [1 ]
Tan, PK [1 ]
Miao, XS [1 ]
Ho, JJ [1 ]
Wu, YJ [1 ]
机构
[1] Data Storage Inst, Singapore, Singapore
来源
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 2000年 / 39卷 / 2B期
关键词
optical data storage; phase change media; rewritable optical disk; multi-level recording;
D O I
10.1143/JJAP.39.733
中图分类号
O59 [应用物理学];
学科分类号
摘要
Multi-level reflection was obtained on rewritable phase change optical disks with a static tester using different laser amplitudes. Different levels of input power amplitude give rise to different reflection levels. In order to study the mechanism for forming the multi-level reflection, partial crystallization effect and size effect were studied. The partial crystallization effect was studied using differential scanning calorimeter (DSC) measurement and X-ray diffractometer (XRD) measurement. The size effect was studied by simulation and measurement. Based on the simulation and experimental results the combination of size effect and partial crystallization effect is proposed as the main reason to cause the multi-level reflection. This model can be used to analyse the writing, erasing, and overwriting processes of multi-level reflection modulation recording.
引用
收藏
页码:733 / 736
页数:4
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