| 用极值频率法分析数字全息的记录条件 |
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| 引用本文： | 王华英,王大勇,谢建军.用极值频率法分析数字全息的记录条件[J].光子学报,2007,36(4):645-649. |
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| 作者姓名： | 王华英 王大勇 谢建军 |
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| 作者单位： | 1. 北京工业大学,应用数理学院,北京,100022;河北工程大学,理学院,河北邯郸,056038
2. 北京工业大学,应用数理学院,北京,100022 |
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| 基金项目： | 北京市留学人员科技活动择优项目资助 |
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| 摘 要： | 根据全息理论,通过分析全息图光栅结构的极值频率,利用抽样定理以及频谱分离条件,分析了离轴菲涅耳全息的记录条件,得到了不同于以往文献的最小记录距离及参考光源设置表达式,并做了计算机模拟验证.结果表明：用该方法推得的离轴菲涅耳全息最小记录距离和参考光设置表达式是正确的.只有同时满足抽样条件和频谱分离条件,才能得到高质量的再现像.
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| 关 键 词： | 数字全息 记录条件 CCD 空间频率 抽样定理 菲涅耳全息 |
| 文章编号： | 1004-4213（2007）04-0645-5 |
| 收稿时间： | 2006-01-08 |
| 修稿时间： | 2006-01-07 |
Analysis of Recording Conditions of Digital Hologram by Maximum Spatial Frequency |
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| WANG Hua-ying,WANG Da-yong,XIE Jian-jun.Analysis of Recording Conditions of Digital Hologram by Maximum Spatial Frequency[J].Acta Photonica Sinica,2007,36(4):645-649. |
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| Authors: | WANG Hua-ying WANG Da-yong XIE Jian-jun |
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| Institution: | 1.College of Applied Sciences,Beijing University of Technology,Beijing 100022,China;2.Hebei University of Engineering,Handan,Hebei 056038,China |
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| Abstract: | By using holographic theory,hologram sampling theorem and separation condition of frequency spectrum,the maximum spatial frequency of off-axis Fresnel was analyzed,and recording conditions were studied.The expressions of the minimum recording distance and of the parameters of the reference wave were given, which were different from others. Both theoretic analysis and computer simulation show that these expressions gained from this article about off-axis Fresnel hologram are correct and rigorous,but others presented all literatures up to now are not right;only the conditions of sampling and separation are simultaneously met,high quality reconstructing image is gained. |
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| Keywords: | Digital holography Recording Condition CCD Spatial frequency Sampling theorem Fresnel hologram |
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