摘要
为了分析数字全息图记录和再现过程中影响再现像分辨率的因素,将空间光调制器与数字全息相结合,构建了实时光学三维显微系统.通过理论推导,得出了能够记录的物体大小和其分辨率之间的定量关系,同时也给出了最佳的参考光条件和最佳的记录距离;在此基础上,把USAF 1951鉴别率板的4个不同区域作为记录物体进行相应的实验.结果表明,实验与理论分析相吻合.
It was analyzed the factors that affected the resolution of reconstructed images in the process of recording and reconstruction of digital holograms,a real-time optical 3 D microscope system was constructed by combining spatial light modulator with digital holography. The quantitative relationship between the size of the object to be recorded and the resolution was deduced by the theory,and the optimum reference condition and the best recording distance were given. On this basis,four different regions of USAF 1951 discrimination board were used as recording objects. The results showed that the experiment agreed well with the theoretical analysis.
出处
《浙江师范大学学报（自然科学版）》
CAS
2018年第1期24-30,共7页
Journal of Zhejiang Normal University:Natural Sciences
基金
国家自然科学基金资助项目(11374267)
关键词
数字全息
空间光调制器
全息显微技术
分辨率
digital holography
spatial light modulator
holographic microscopy
resolution
