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Research on pupil zonal phase modulation method for improving the data optical storage density
Author(s): 
Pages: 361-364
Year: Issue:  4
Journal: JOURNAL OF UNIVERSITY OF SHANGHAI FOR SCIENCE AND TECHNOLOGY

Keyword:  光存储有效光斑光学切趾术光瞳环带相位调制;
Abstract: 对高密度光存储技术中光瞳环带相位调制方法进行了分析,并将其与光学切趾术进行了比较.研究发现,这种减小像面上光斑大小的方法是以大幅度增加旁瓣与主瓣的相对大小为代价的,它提高光存储密度的效果基本与光学切趾术相当.但是,对于高阈值的光探测器,光瞳相位调制方法要优于光学切趾术.
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