Paper
24 November 2021 Coherence retrieval via three-dimensional intensity measurement
Author Affiliations +
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.
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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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KEYWORDS
Wigner distribution functions

3D metrology

Inverse optics

Coherence (optics)

Imaging systems

Spatial frequencies

Tomography

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