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The self-interference digital holographic imaging system with structured light illumination is developed to improve the axial imaging resolution and its basic principle is demonstrated. The numerical simulation and experiment are conducted to investigate the effects of the spatial frequency of the structured light and the axial distance of the sample on the tomographic imaging performances of the system. The results show that self-interference digital holographic imaging under structured light illumination can considerably improve the tomographic imaging capability. © 2019, Chinese Lasers Press. All right reserved.
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