%0 Journal Article
%T Focal depth of digital lensless Fourier transform micro-holographic system<br>无透镜傅里叶变换显微数字全息成像系统的焦深
%A Wang Hua-Ying
%A Zhang Zhi-Hui
%A Liao Wei
%A Song Xiu-F
%A Guo Zhong-Jia
%A Liu Fei-Fei
%A <br>王华英
%A 张志会
%A 廖薇
%A 宋修法
%A 郭中甲
%A 刘飞飞
%J 物理学报
%D 2012
%I 
%X Based on the Strehl criterion of coherent lens imaging system, the focal depth (FD) of lensless Fourier digital micro-holographic system is deduced. The FD expressions of the holographic systems with symmetrical and unsymmetrical reference point sources are obtained. The results show that the FD of lensless Fourier digital micro-holographic system is dependent not only on the optical wavelength and the numerical aperture of the recording system but also on the offset of the reference optical source, which is different from the FD of lensless Fourier digital micro-holographic system. The validities of the theoretical analysis are demonstrated by the computer simulations and experiments.
%K micro-digital holography
%K lensless Fourier transform digital holography
%K focal depth<br>显微数字全息
%K 无透镜傅里叶变换数字全息
%K 焦深
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=2C2DE33E892A8820BE1DCCA1A8CE8E03&yid=99E9153A83D4CB11&vid=1D0FA33DA02ABACD&iid=E158A972A605785F&sid=169579501EB43019&eid=169579501EB43019&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=22