强激光与粒子束2013，Vol.25Issue(2)：345-349,5.DOI:10.3788/HPLPB20132502.0345
球面参考光预放大数字全息成像系统分辨力
Resolution analysis of pre-magnification digital holographic imaging system with spherical reference wave
摘要
Abstract
In order to improve the resolution of digital holographic imaging system, the recording and reconstruction processes of a pre-magnification digital holographic system with a spherical reference wave are theoretically deduced. Then the point spread function is obtained and the factors to determine the imaging resolution of this system are analyzed. In the case of the CCD imaging resolution higher than that of the microscope objective, the relationship between the resolution and the recording distance of the system is discussed through the experiment of resolution target USAF. The result show that the resolution of reconstructed images is not sensitive to the recording distance. But as the recording distance is zero, which is named digital image-plane holography, the resolution of reconstructed images is highest. The experimental results are consistent with the theoretical analysis.关键词
预放大数字全息/像面数字全息/球面参考光/脉冲响应/分辨力Key words
pre-magnification digital holography/ image-plane digital holography/ spherical reference wave/ impulse response/ resolution分类
数理科学引用本文复制引用
王华英,刘飞飞,成惠,廖薇,赵宝群,于梦杰,刘佐强..球面参考光预放大数字全息成像系统分辨力[J].强激光与粒子束,2013,25(2):345-349,5.基金项目
国家自然科学基金项目(61077001,61144005) （61077001,61144005）
河北省自然科学基金项目(F2010001038,F2012402059) （F2010001038,F2012402059）
河北省科技支撑计划项目(09277101D) （09277101D）
河北省教育厅科学研究重点项目(ZH2011241) （ZH2011241）
