Efficient acquisition of Mueller matrix via spatially modulated polarimetry at low light field

Tianlei Ning, Xiang Ma, Yuanhe Li, Yanqiu Li*, Ke Liu

*此作品的通讯作者

科研成果: 期刊稿件文章同行评审

6 引用 (Scopus)

摘要

Mueller polarimetry performed in low light field with high speed and accuracy is important for the diagnosis of living biological tissues. However, efficient acquisition of the Mueller matrix at low light field is challenging owing to the interference of background-noise. In this study, a spatially modulated Mueller polarimeter (SMMP) induced by a zero-order vortex quarter wave retarder is first presented to acquire the Mueller matrix rapidly using only four camera shots rather than 16 shots, as in the state of the art technique. In addition, a momentum gradient ascent algorithm is proposed to accelerate the reconstruction of the Mueller matrix. Subsequently, a novel adaptive hard thresholding filter combined with the spatial distribution characteristics of photons at different low light levels, in addition to a low-pass fast-Fourier-transform filter, is utilized to remove redundant background noise from raw-low intensity distributions. The experimental results illustrate that the proposed method is more robust to noise perturbation, and its precision is almost an order of magnitude higher than that of the classical dual-rotating retarder Mueller polarimetry at low light field.

源语言英语
页(从-至)14532-14559
页数28
期刊Optics Express
31
9
DOI
出版状态已出版 - 24 4月 2023

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Ning, T., Ma, X., Li, Y., Li, Y., & Liu, K. (2023). Efficient acquisition of Mueller matrix via spatially modulated polarimetry at low light field. Optics Express, 31(9), 14532-14559. https://doi.org/10.1364/OE.484579