Numerical study of a high-extinction-ratio micro-polarizer array with a metal grid substrate

Nie, Anran; zhenwei, Qiu; Sun, Xiaobing; Zhu, Jun; Jiang, Hong

doi:10.1364/ao.472707

Cited by 2 publications

(3 citation statements)

References 17 publications

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“…In 2022, Nie et al proposed a metal gate substrate structure applied to the micro-polarizer array, which can effectively reduce optical crosstalk and improve the extinction ratio of the micro-polarizer array. The calculation results show that the extinction ratio of the structure they proposed is more than 10 times higher than that of the traditional micro-polarizer structure [94]. They proposed a micropolarizer array with a metal mesh substrate, as shown in Figure 17a, showing the structure diagram of the micro-polarizer array.…”

Section: Focal Plane Spectroscopic Sensor Based On Real-time Imaging ...mentioning

confidence: 99%

“…For example, sand ants can reach several hundred meters away from their nests when foraging but can return to their nests in almost a straight line (thick line in the picture) [3], as shown in Figure 1. [78][79][80][81][82][83][84][85][86][87][88][89][90][91][92][93][94][95][96] Good real-time performance, high precision, and high integration.…”

Section: Biomimetic Polarized Light Navigation In Naturementioning

confidence: 99%

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Biomimetic Polarized Light Navigation Sensor: A Review

Kong

Han

et al. 2023

Sensors

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A polarized light sensor is applied to the front-end detection of a biomimetic polarized light navigation system, which is an important part of analyzing the atmospheric polarization mode and realizing biomimetic polarized light navigation, having received extensive attention in recent years. In this paper, biomimetic polarized light navigation in nature, the mechanism of polarized light navigation, point source sensor, imaging sensor, and a sensor based on micro nano machining technology are compared and analyzed, which provides a basis for the optimal selection of different polarized light sensors. The comparison results show that the point source sensor can be divided into basic point source sensor with simple structure and a point source sensor applied to integrated navigation. The imaging sensor can be divided into a simple time-sharing imaging sensor, a real-time amplitude splitting sensor that can detect images of multi-directional polarization angles, a real-time aperture splitting sensor that uses a light field camera, and a real-time focal plane light splitting sensor with high integration. In recent years, with the development of micro and nano machining technology, polarized light sensors are developing towards miniaturization and integration. In view of this, this paper also summarizes the latest progress of polarized light sensors based on micro and nano machining technology. Finally, this paper summarizes the possible future prospects and current challenges of polarized light sensor design, providing a reference for the feasibility selection of different polarized light sensors.

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Section: Focal Plane Spectroscopic Sensor Based On Real-time Imaging ...mentioning

confidence: 99%

Section: Biomimetic Polarized Light Navigation In Naturementioning

confidence: 99%

Biomimetic Polarized Light Navigation Sensor: A Review

Kong

Han

et al. 2023

Sensors

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“…Distributed integration is to fabricate the required MPA on a certain substrate and then paste it on the detector [ 17 , 18 ]. Due to issues such as crosstalk caused by the thickness of the adhesive layer [ 19 ], alignment of detector pixels and MPA, and grating collapse caused by stress during the adhesive process, the polarization performance of the DoFP polarization detector has significantly declined. Therefore, it would be a better choice to directly fabricate MPA on the surface of the photosensitive surface of the detector, and some research groups have already tried this solution [ 20 ].…”

Section: Introductionmentioning

confidence: 99%

Method of Directly Writing MPA on Photosensitive Surface of Detector Based on FIB

Nie,

Qiu,

Sun

et al. 2024

Sensors

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The division of focal plane (DoFP) polarization detector has great potential for the development of aerospace polarimeters, but the existing commercial DoFP polarization detector cannot satisfy all the missions due to the diversity of satellite payloads. Here, we propose a method of directly writing a micro-polarizer array (MPA) on the detector surface based on focused ion beams (FIB) and fabricating a push-broom scanning DoFP polarization detector. The feasibility and low crosstalk of the solution were proved through testing, and the reasons for the low extinction ratio caused by oxidation were explained through characterization and numerical calculations. This scheme is not only applicable to DoFP polarization detectors but also provides ideas for the integration of other metasurface structures and detectors.

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Numerical study of a high-extinction-ratio micro-polarizer array with a metal grid substrate

Cited by 2 publications

References 17 publications

Biomimetic Polarized Light Navigation Sensor: A Review

Biomimetic Polarized Light Navigation Sensor: A Review

Method of Directly Writing MPA on Photosensitive Surface of Detector Based on FIB

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