强度关联三维衍射层析的实验研究  

Experimental Investigation of Intensity Correlated Three Dimensional Diffraction Tomography

作　　者：应关荣[1] 刘红林[1] 魏青[1] 韩申生[1] 

机构地区：[1]中国科学院上海光学精密机械研究所量子光学重点实验室,上海201800

出　　处：《光学学报》2009年第10期2786-2790,共5页Acta Optica Sinica

基　　金：上海市科学技术委员会科研项目(06JC14069)资助课题

摘　　要：提出了一种基于强度关联成像的新型三维衍射层析技术。利用强度关联成像技术(鬼成像)可实现无透镜傅里叶变换的特点,并结合衍射层析技术和二步相位恢复算法,使用波长为650nm的赝热光实现了强度关联三维衍射层析。详细描述了强度关联三维衍射层析的基本原理以及具体实验结果,为在第三代同步辐射光源实现非相干X光衍射成像积累了经验。A new three-dimensional diffraction tomography,based on intensity correlation imaging,is demonstrated. Intensity correlated imaging （ghost imaging）,which can realize the lensless Fourier-transform,the diffraction tomography and the two-step phase-retrieval algorithm are combined together to realize intensity correlated three dimensional diffraction tomography by using 650 nm pseudo-thermal light. The theoretical basis of this technique is outlined,and the experimental results are presented. This paper is a preparation for the applications of incoherent X-ray intensity correlated three-dimensional diffraction tomography in the third generation X-ray synchrotron radiation source.

关 键 词：强度关联成像 衍射层析 相位恢复 滤波背投影(FBP)算法 

分 类 号：O431.2[机械工程—光学工程] O434[理学—光学]