Polarization hyperspectrometers: a review

Gorbunov, G. G.; Drichko, N. M.; Starichenkova, V. D.; Taganov, O. K.

doi:10.1364/jot.85.000291

Cited by 4 publications

(1 citation statement)

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“…Spectral polarization imaging (SPI) aims to obtain four-dimensional (4D) representation data of target scenes, consisting of two-dimensional (2D) spatial information, onedimensional spectral information, and the polarization state information represented by full-Stokes parameters [1,2]. Due to the its ability to reveal and retrieve target information, e.g., material composition, surface texture and characteristic details, SPI has been extensively applied in many night-vision-related fields, such as anomaly detection, field reconnaissance, night navigation, and so on [3][4][5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

High Light Efficiency Spectral Polarization Imaging Method Based on Mach–Zehnder Structured Liquid Crystal Tunable Filters and Variable Retarders

et al. 2023

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Liquid crystal tunable filters (LCTFs) are extensively used in hyperspectral imaging systems to obtain spectral information of target scenes. However, a typical LCTF can only filter linearly polarized light, greatly reducing the transmittance of the system and limiting its application in spectral and polarization imaging. In this paper, a spectropolarimeter using Mach–Zehnder structured LCTFs (MZ-LCTFs) combined with liquid crystal variable retarders (LCVRs) is proposed. The polarized beam splitter (PBS) can make full use of the two polarization components of the incident light to improve the transmittance of the system. Specifically, the results show that the mean pixel intensity (MPI) of spectral images is improved by 93.48% compared to a typical LCTF. Subsequently, the average signal to noise ratio (SNR) of filtered and unfiltered images when simultaneously using polarization S and P channels is increased by 2.59 dB compared to a single channel. In addition, the average Standard Deviations (STDs) of DoLP and DoCP are 0.016 and 0.018, respectively. The proposed method has the potential to be applied to obtain polarization information with high optical efficiency and a full spectrum in a wide band.

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Section: Introductionmentioning

confidence: 99%

High Light Efficiency Spectral Polarization Imaging Method Based on Mach–Zehnder Structured Liquid Crystal Tunable Filters and Variable Retarders

et al. 2023

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Lenslet-based snapshot full-Stokes imaging spectropolarimeter

Yang²,

et al. 2022

Optics & Laser Technology

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Design and performance study of narrowband polarized colloidal quantum dots photodetector

You,

Liu,

Zhang

et al. 2024

J. Phys. D: Appl. Phys.

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Colloidal quantum dot-based (CQD) photodetectors have shown exceptional potential for low-cost, room-temperature broadband imaging. However, the isotropic optical properties of the CQD absorber hinder the capability for multi-dimensional photodetection, such as polarization. Here, we design and theoretically study a CQD photodetector with an encapsulation layer and metal grating layer, which can achieve narrowband polarization sensitivity with a full width at half maximum (FWHM) of 230 nm at a wavelength of 2 μm. We first investigate the effect of the geometric parameters of the architecture. Moreover, we examine the broadband polarized optical properties and analyze the corresponding mechanisms. A large linear polarization ratio of 66 is obtained at an illuminated light wavelength of 2 μm. These results contribute to offering a promising design for constructing narrowband polarized CQD photodetectors, particularly for quantum information processing in the realms of quantum communication and quantum cryptography.

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Polarization hyperspectrometers: a review

Cited by 4 publications

References 0 publications

High Light Efficiency Spectral Polarization Imaging Method Based on Mach–Zehnder Structured Liquid Crystal Tunable Filters and Variable Retarders

High Light Efficiency Spectral Polarization Imaging Method Based on Mach–Zehnder Structured Liquid Crystal Tunable Filters and Variable Retarders

Lenslet-based snapshot full-Stokes imaging spectropolarimeter

Design and performance study of narrowband polarized colloidal quantum dots photodetector

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