电子全息术再现中的若干问题  

Some problems on reconstruction of electron holography

作　　者：陈建文[1] 朱佩平[1] 肖体乔[1] 王之江[1] 

机构地区：[1]中国科学院上海光学精密机械研究所,上海201800

出　　处：《光学学报》1993年第4期330-334,共5页Acta Optica Sinica

基　　金：国家自然科学基金资助

摘　　要：讨论了“冻结”在电子全息图中的位相信息的再现方法.实验结果表明两次曝光技术不但能直接获取位相信息,不需要激光再现,而且能给出定量结果.这也意味着,在一次实验中用电子显微镜可以同时获得振幅和位相两种信息.The reconstruction methods of phase information 'Frozen' in an electron hologram are discussed. The experimental results show that the double-exposure can not only obtain directly the phase information, where it doesn' t need laser reconstruction, but also gives quantitative results. This means that the information of both amplitude and phase can be simulaneously obtained in an experiment with electron microscope.

关 键 词：两次曝光 位相全息图 电子全息照相 

分 类 号：TB877.1[一般工业技术—摄影技术]