Detector patterns from optical disks

作     者：Upton, RS Milster, TD 

作者机构：Breault Res Org Opt Engn Serv Tucson AZ 85715 USA Univ Arizona Ctr Opt Sci Opt Data Storage Ctr Tucson AZ 85721 USA 

出 版 物：《OPTICAL ENGINEERING》 (光学工程)

年 卷 期：2001年第40卷第6期

页      面：1030-1044页

核心收录：

学科分类：08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 081102[工学-检测技术与自动化装置] 0811[工学-控制科学与工程] 0702[理学-物理学] 

主　　题：optical data storage system interference patterns diffraction Fourier analysis crosstalk 

摘      要：The irradiance in the exit pupil of a typical optical data storage system (i.e., the detector pattern) consists of fringes formed by the interference of fields reflected from the optical disk. The reflected fields are decomposed using Babinet s principle into desired and undesired components. The behavior of the fringes depends on the interaction of the focused light spot with the features on the optical disk and media parameters. such as mark and land reflectivities, groove depth, and mark pattern. The behavior of the desired and of the undesired fringes are determined for both write-bright media (bright data marks written on a dark background) and write-dark media (dark marks written on a bright background). Both a theoretical development and a scalar diffraction simulation tool are used in the analysis. (C) 2001 Society of Photo-Optical Instrumentation Engineers.