Coherence retrieval via three-dimensional intensity measurement

Runnan Zhang; Zewei Cai; Jiasong Sun; Ning Zhou; Qian Chen; Chao Zuo

doi:10.1117/12.2606138

24 November 2021 Coherence retrieval via three-dimensional intensity measurement

Runnan Zhang, Zewei Cai, Jiasong Sun, Ning Zhou, Qian Chen, Chao Zuo

Proceedings Volume 12065, AOPC 2021: Optical Sensing and Imaging Technology; 1206522 (2021) https://doi.org/10.1117/12.2606138
Event: Applied Optics and Photonics China 2021, 2021, Beijing, China

Abstract

Wigner distribution function (WDF) is a complete representation of the optical ﬁeld with arbitrary coherent state and can be regarded as a local spectrum. It has unique advantages for representation, measurement and manipulation of partially coherent ﬁelds. Image sensors can only obtain the two-dimensional intensity data, which is the shearing projection of WDF. The shearing of WDF, which equals to the propagation of optical ﬁeld, embodies the coherent properties of optical ﬁeld. In this paper, a phase space retrieval method based on three-dimensional (3D) intensity focus stack combined with an iterative optimization is proposed. WDF with arbitrary coherent state can be reconstructed by 3D intensity sequences, which can realize the local spectrum retrieval and the analysis of spatial partially coherent ﬁelds.

Citation Download Citation

Runnan Zhang, Zewei Cai, Jiasong Sun, Ning Zhou, Qian Chen, and Chao Zuo "Coherence retrieval via three-dimensional intensity measurement", Proc. SPIE 12065, AOPC 2021: Optical Sensing and Imaging Technology, 1206522 (24 November 2021); https://doi.org/10.1117/12.2606138

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