Pixelated-polarization-camera-based polarimetry system for wide real-time optical rotation measurement

Ma, Xuan; Dong, Fengzhong; Zhang, Zhigang; Su, Yong; Xu, Tian; Jiang, Zhaoxiang; Wu, Shangquan; Zhang, Qingchuan; Chu, Weiguo; Wu, Xiaoping

doi:10.1016/j.snb.2018.12.098

Cited by 34 publications

(9 citation statements)

References 25 publications

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“…The calibration of these parameters has been well discussed in Refs. [25,26,30]. Here, we consider m 0 , m 1 , m 2 , and d as known.…”

Section: Linear Pixel Modelmentioning

confidence: 99%

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Reconstructing Stokes parameters from non-uniform division-of-focal-plane modulation

Jiang,

Zhang,

et al. 2020

Preprint

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Division-of-focal-plane modulation is a powerful technique for real-time polarization imaging. This technique, however, suffers from the non-uniformity of the performance of linear polarization filters and photodetectors. We study the Stokes parameters reconstruction from the division-of-focal-plane modulation in the presence of the non-uniformity. Two reconstruction methods, named as least-squares and smoothing regularization methods, are proposed. The performance of the proposed methods are evaluated through Fourier analysis, numerical simulations, and experiments. The results indicate that the proposed methods can effectively mitigate the reconstruction errors and artifacts caused by the non-uniformity, and therefore may further facilitate the practical application of the division-of-focal-plane technique.

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“…The calibration of these parameters has been well discussed in Refs. [25,26,30]. Here, we consider m 0 , m 1 , m 2 , and d as known.…”

Section: Linear Pixel Modelmentioning

confidence: 99%

“…The basic idea of this method has been reported in Ref. [29] and our previous study [30]. Here, we further add a four-…”

Section: Introductionmentioning

confidence: 99%

Reconstructing Stokes parameters from non-uniform division-of-focal-plane modulation

Jiang,

Zhang,

et al. 2020

Preprint

Self Cite

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“…This is conducive to analyzing the surface and material properties of objects and is used in remote sensing [1,2] , biological imaging [3,4] , and industrial monitoring [5][6][7] . Micrometer-sized patterned polarizers are coated on a metal-oxide-semiconductor (CMOS) camera to form a polarization imaging system to achieve polarization sensitivity [8][9][10][11][12] .…”

Section: Introductionmentioning

confidence: 99%

Flexible high-resolution thin micropolarizers for imaging polarimetry

Yang²,

Yin

et al. 2023

中国光学快报

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More durable (with high impact force), lighter, and more compact flexible azo dye micropolarizers are attractive candidates for low-cost, simple polarization imaging systems. The liquid crystal polymer (LCP), as an emerging material developed by photo-alignment technology, is a potential material for organizing the long-range ordered structure of azo dyes. However, little research has been done on LCP aligned azo dyes. This paper points out and solves a key problem that restricts the fabrication of high-precision arrays in guest (azo dye)-host (LCP) systems: the doping of dyes leads to disorder of the LCP during curing. After solving the problem, the relationship between the thickness of the LCP and the extinction ratio of the polarizing film was investigated, which effectively improved the extinction ratio. Alignment of azo dye molecules in the range of 2 μm (0°-180°) and arrays of micropolarizers (0°, 45°, 90°, −45°) with 8 μm × 8 μm pixel pitch was achieved by laser direct writing technology. The bending cycle test demonstrates the mechanical stability of the ultrathin flexible polarizer. The flexible patterned polarizer with robust chemical and mechanical stabilities provides a flexible way to capture the polarization of the light and highly integrated advanced flexible optoelectronic devices.

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“…The image obtained is fuzzy and low quality [15]. Pixelated-polarization-camera uses pixelated micropolarizer array to measure the polarization angle and form polarimeters, but it just shows the polarized light image under four angle (0 °、 45°、 90°and135°), and cannot shows the specific rotational angle [16].…”

Section: Introductionmentioning

confidence: 99%

Determination of Optical Rotation Based on Liquid Crystal Polymer Vortex Retarder and Digital Image Processing

et al. 2022

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Pixelated-polarization-camera-based polarimetry system for wide real-time optical rotation measurement

Cited by 34 publications

References 25 publications

Reconstructing Stokes parameters from non-uniform division-of-focal-plane modulation

Reconstructing Stokes parameters from non-uniform division-of-focal-plane modulation

Flexible high-resolution thin micropolarizers for imaging polarimetry

Determination of Optical Rotation Based on Liquid Crystal Polymer Vortex Retarder and Digital Image Processing

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