%0 Journal Article
%T Study on Statistical Characteristics of Speckle Patterns Generated by Optical Disk Information Marks<br>光盘信息符散斑图的统计特性研究
%A Changchun Institute of Optics
%A Fine Mechanics
%A Physics
%A Chinese Academy of Sciences
%A Changchun Graduate School of the Chinese Academy of Sciences
%A Beijing
%A <br>李新忠
%A 岱钦
%A 汪永阳
%A 王希军
%J 光子学报
%D 2006
%I 
%X A method of laser speckle for information marks measurement of optical disk was proposed.When laser beam illuminating the weak scattering objectted,there was an approximately linear relationship between the speckle average contrast and the roughness of the illuminated surface in the diffraction field.According to this theory,the optical disk can be regarded as a weak diffuse object.In this paper,the patterns generated by several regions of blank,read-in-data and damaged optical disks were studied.The experimental results indicated that this method could be applied to obtain some statistical characteristics of optical disk due to its advantages of quantitative and full-field measurement,which provided a novel technique to character the optical disk quality.
%K Laser speckle
%K Optical disk
%K Information mark
%K Statistical characteristics<br>激光散斑
%K 光盘
%K 信息符
%K 统计特性
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=9F6139E34DAA109F9C104697BF49FC39&aid=394185E19EECCBD7&yid=37904DC365DD7266&vid=6209D9E8050195F5&iid=708DD6B15D2464E8&sid=3183893ED5218CD5&eid=387FB6C3BA4B6547&journal_id=1004-4213&journal_name=光子学报&referenced_num=3&reference_num=18