RECORDING AND ERASING CHARACTERISTICS AT A WAVELENGTH OF 680 NM FOR A PHASE-CHANGE DISK DESIGNED FOR 830 NM WAVELENGTH

被引：4

作者：

INOUE, K ^{[1
]}

OHTA, T ^{[1
]}

ISHIDA, T ^{[1
]}

GOTOH, Y ^{[1
]}

SATOH, I ^{[1
]}

机构：

[1] MATSUSHITA ELECT IND CO LTD,INFORMAT EQUIPMENT RES LAB,MORIGUCHI,OSAKA 570,JAPAN

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1993年 / 32卷 / 11B期

关键词：

PHASE-CHANGE; OPTICAL DISK; HIGH-DENSITY RECORDING; SHORT WAVELENGTH; EXCHANGEABILITY; LASER SPOT;

D O I：

10.1143/JJAP.32.5223

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A phase-change optical disk designed for use at 830 nm wavelength was examined for differences in recording and erasing characteristics at wavelengths of 830 nm and 680 nm. The saturated carrier-to-noise ratio (C/N) was more than 50 Db. The saturated erasability was near 30 Db. The laser spot is smaller at shorter wavelength. However, there was no marked difference depending on the laser spot size. This indicates that phase-change optical disks have good exchangeability regardless of the laser wavelength.

引用

页码：5223 / 5225

页数：3