数字全息显微镜技术中关键参数实验研究  

Experimental research on key parameters in digital holographic microscopy

作　　者：朱亮[1] 周文静[1] 瞿惠[1] 李海鹏[1] 

机构地区：[1]上海大学机自学院精密机械工程系,上海200072

出　　处：《电子测量与仪器学报》2013年第3期217-223,共7页Journal of Electronic Measurement and Instrumentation

基　　金：国家自然科学基金青年科学基金(61107004);上海市教委创新基金(12zz088);上海市教委"机械电子工程"创新团队资助项目

摘　　要：概述了数字全息显微镜技术研究及应用现状,介绍了数字全息显微镜技术的原理及其数值重建算法特点,分析了数字离轴全息图记录系统的3个关键参数:记录距离、光源有效光斑尺寸及视场尺寸。通过相位光栅模拟实验研究表明:存在一个最佳记录距离,使得被测物体能被充分记录;光源有效光斑尺寸应大于等于记录介质CCD感光面尺寸;视场尺寸边界距离CCD感光面尺寸边界至少50 pixels。The status of research and application of digital holographic microscopy was summerized. The principle of digital holographic microscopy and the character of reconstruction algorithm was also introduced. Three key parameters： recording distance, effective light spot size and viewfield size were analysed in a off-axis holographic recording system of digital holographic microscopy. The research on phase grating simulatation experiment shows that there is a most perfect recording distance making samples be recorded completely. The effective light spot size should be not less than the size of photosensitive surface of CCD. The distance between viewfield size boundary and photosensitive surface boundary of CCD is 50 pixels at least

关 键 词：数字全息显微镜 记录距离 光斑尺寸 视场尺寸 

分 类 号：TN26[电子电信—物理电子学]