Poster + Paper
14 September 2021 Nonlinearity in polarization imaging system with partially polarized and partially coherent illumination
Author Affiliations +
Conference Poster
Abstract
As an advanced technology, polarization imaging has attracted widespread interests in recent years due to its unique ability to detect the polarization information of objects. With illumination of partially coherent and partially polarized light, the polarization imaging systems are in generally nonlinear systems because they do not possess a transfer matrix in the usual sense. Nonetheless, it is possible to apply a sinusoidal amplitude object at the input and to measure a periodic output. However, unlike the linear case, knowledge of the response of the polarization system to a sinusoidal input does not allow one to predict what the output will be for other types of inputs. To address the fundamental nonlinearity in evaluation of the Stokes images, we provide a frequency- domain calculation of Stoke images of a sinusoidal amplitude grating under partially polarized and partially coherent illumination, and propose a new concept referred to as transmission cross coefficients to describe its frequency response of polarization imaging system. Some of the implications of such analysis are also given for polarization imaging evaluation.
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Xiaoying Hu, Hao Li, Shoubo Hu, Weiguo Liu, Mitsuo Takeda, and Wei Wang "Nonlinearity in polarization imaging system with partially polarized and partially coherent illumination", Proc. SPIE 11875, Computational Optics 2021, 118750P (14 September 2021); https://doi.org/10.1117/12.2597114
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KEYWORDS
Silicon

Fourier transforms

Transmittance

Complex systems

Light sources

Modulation

Spatial frequencies

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