Impact of the spatial coherence on self-interference digital holography |
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| Affiliation: | 1.National Laboratory of Solid State Microstructures and School of Physics, Nanjing University, Nanjing 210093, China;2.Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China;3.Collaborative Innovation Center of Solid-State Lighting and Energy-Saving Electronics, Nanjing University, Nanjing 210093, China;4.College of Science, Jiujiang University, Jiujiang 332005, China |
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| Abstract: | Owing to the unique feature that the signal and reference waves of self-interference digital holography (SIDH) contain the same spatial information from the same point of object, compared with conventional digital holography, the SIDH has the special spatial coherence properties. We present a statistical optics approach to analyzing the formation of cross-correlation image in SIDH. Our study reveals that the spatial coherence of illumination light can greatly influence the imaging characteristics of SIDH, and the impact extent of the spatial coherence depends substantially on the recording distance of hologram. The theoretical conclusions are supported well by numerical simulation and optical experiments. |
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| Keywords: | holography imaging and optical processing photon statistics and coherence theory interference |
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