Coherent amplitude modulation imaging based on partially saturated diffraction pattern

• DOI: 10.1364/oe.26.021929
• Publication Date: 2018-08-08T21:42:33Z
• Authors: Xingchen Pan; Cheng Liu; Jianqiang Zhu
• Keywords: Ptychography; Aperture (computer memory); Coded aperture; Modulation (music)

A single-shot phase retrieval algorithm based on a random aperture and partially saturated diffraction pattern is proposed. The in the area could be retrieved during iterative process, which circumvents problem of limited dynamic range detector. Besides, easier to manufactured if accuracy high enough, design value used directly for iterations. It has potential adapted different wavelengths without additional transmission measurement wave modulator. validity been demonstrated by simulations experiment.