5 July 2013 Phase retrieval in lens-based Fresnel wave propagation model
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The goal of phase retrieval is to extract the phase of an optical wave field from intensity measurements. The transport-of-intensity equation (TIE)-based method is a popular deterministic solution and has been applied in various fields such as optical microscopy, electron microscopy, and x-ray imaging. For macro-imaging, a camera is often used to capture the images, and thus the phase modulation of the lens should be considered. A new formulation is proposed to extend TIE for phase retrieval in a lens-based wave propagation model. To obtain the defocus step, a data-collection-reading device is designed by equipping a camera with a micrometer caliper. Simulation and real experiments are conducted to test the proposed method.
© 2013 Society of Photo-Optical Instrumentation Engineers (SPIE)
Hong Cheng, Hong Cheng, Sui Wei, Sui Wei, Wei Zhang, Wei Zhang, Cheng Zhang, Cheng Zhang, } "Phase retrieval in lens-based Fresnel wave propagation model," Optical Engineering 52(7), 074102 (5 July 2013). https://doi.org/10.1117/1.OE.52.7.074102 . Submission:

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