Coherent amplitude modulation imaging based on partially saturated diffraction pattern | Zendy

Xingchen Pan | Zendy; Cheng Liu | Zendy; Jianqiang Zhu | Zendy

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Coherent amplitude modulation imaging based on partially saturated diffraction pattern

Author(s) -

Xingchen Pan,

Cheng Liu,

Jianqiang Zhu

Publication year - 2018

Publication title -

optics express

Language(s) - Uncategorized

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.26.021929

Subject(s) - optics , diffraction , phase retrieval , ptychography , aperture (computer memory) , detector , phase modulation , amplitude , coded aperture , wavelength , transmission (telecommunications) , modulation (music) , amplitude modulation , synthetic aperture radar , physics , materials science , frequency modulation , computer science , fourier transform , phase noise , telecommunications , acoustics , artificial intelligence , bandwidth (computing) , quantum mechanics

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

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