摘要
在光存储技术中 ,采用短激光波长激光器和大数值孔径物镜是提高光存储密度的两种有效途径 本文采用 5 32nm波长激光 ,0 .6 5数值孔径物镜 ,建立了绿光存储实验装置 并采用该实验装置在CD RW相变光盘上进行了存储实验研究 ,实现了线宽约为 5 0
To improve optical storage density, short wavelength laser and high numerical aperture (NA) objective lens are often applied. In this paper, an optical storage device with 532 nm laser and an objective lens of NA=0.65 is setup. An experimental result of a recording track of about 500 nm is obtained on CD-RW disk with this experimental device.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2004年第6期761-764,共4页
Acta Photonica Sinica
关键词
光存储
离焦检测
自动聚焦
Optical data storage
Focus error detecting
Automatically focusing
