Digital holographic microscopy with phase-shift-free structured illumination
作者机构：State Key Laboratory of Transient Optics and PhotonicsXi’an Institute of Optics and Precision MechanicsChinese Academy of SciencesXi’an 710119China Institut für Technische OptikUniversität StuttgartPfaffenwaldring 970569 StuttgartGermany Department of BioengineeringClemson UniversityClemson-MUSC Bioengineering ProgramCharlestonSouth Carolina 29425USA
出 版 物：《Photonics Research》 (光子学研究（英文版）)
年 卷 期：2014年第2卷第3期
页 面：87-91页
核心收录：
学科分类：070207[理学-光学] 07[理学] 08[工学] 0803[工学-光学工程] 0702[理学-物理学]
基 金：This work is supported by the National Basic Research Program(973 Program)of China under Grant No.2012CB921900 the National Natural Science Foundation of China(NSFC)under Grant Nos.61377008,61107003,and 61275191
主 题：illumination holographic phase
摘 要：When structured illumination is used in digital holographic microscopy(DHM),each direction of the illumination fringe is required to be shifted at least three times to perform the phase-shifting *** this paper,we propose a scheme for spatial resolution enhancement of DHM by using the structured illumination but without phase *** structured illuminations of different directions,which are generated by a spatial light modulator,illuminate the sample sequentially in the object *** formed object waves interfere with a reference wave in an off-axis configuration,and a CCD camera records the generated *** the object waves are reconstructed numerically,a synthetic aperture is performed by an iterative algorithm to enhance the spatial *** resolution improvement of the proposed method is proved and demonstrated by both simulation and experiment.
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