Open AccessDynamic sampling iterative phase retrieval for holographic data storage
Author(s) -
Ruixian Chen,
Jianying Hao,
Changyu Yu,
Qijing Zheng,
Xianying Qiu,
Suping Wang,
Yuxin Chen,
Kun Wang,
Dakui Lin,
Yi Yang,
Hui Li,
Xiao Lin,
Xiaodi Tan
Publication year - 2021
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.419630
Subject(s) - phase retrieval , fourier transform , phase (matter) , detector , optics , sampling (signal processing) , computer science , holography , iterative method , algorithm , holographic data storage , spatial frequency , physics , quantum mechanics
A dynamic sampling iterative phase retrieval method, which dynamically samples the Fourier intensity distribution of the reconstruction beam captured by the detector, is proposed to shorten the iterative number and decrease the phase error rate of phase retrieval in the phase-modulated holographic data storage. By the dynamic sampling method, that keeping relatively low frequency component of Fourier intensity spectrum at the beginning of iteration and gradually releasing more high frequency component at the subsequent iterations, we shortened the iterative number by 2 times and decreased the phase error rate to some extent because our method provided a better convergent path to the phase retrieval. We also believe the thought of our method can be used in more image retrieval fields.