Design of hyper-spectral and full-polarization imager based on AOTF and LCVR

Li, Feifei; Xu, Yingyu; Ma, Yajie

doi:10.1117/12.2073012

Cited by 3 publications

(2 citation statements)

References 3 publications

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“…The AOTF based spectral imaging systems proposed by Sturgeon et al 37 uses two diffracted orthogonal polarized band images simultaneously with two separate image detectors. Glenar et al, 38 Li et al, 39 and Qubta et al 36 proposed AOTF-based systems which use only one image detector and an external variable retarder in front of the AOTF to alter the input light polarization. Qi et al 34 explored an hybrid system with both AOTF and DOFP technologies, that uses DOFP camera to measure the linear Stokes parameters in a snapshot way.…”

Section: Acousto-optic Tunable Filtersmentioning

confidence: 99%

Review of spectral and polarization imaging systems

Sattar

Lapray

Foulonneau

et al. 2020

Unconventional Optical Imaging II

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Spectral and Polarization Imaging (SPI) is an emerging sensing method that combines the acquisition of both spectral and polarization information of a scene. It could benefit for various applications like appearance characterization from measurement, reflectance property estimation, diffuse/specular component separation, material classification, etc. In this paper, we present a review of recent SPI systems from the literature. We propose a description of the existing SPI systems in terms of technology employed, imaging conditions, and targeted application.

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Section: Acousto-optic Tunable Filtersmentioning

confidence: 99%

Review of spectral and polarization imaging systems

Sattar

Lapray

Foulonneau

et al. 2020

Unconventional Optical Imaging II

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“…The other AOTFspectrometer configuration uses a single detector and substitutes the second with an external variable retarder in order to alter the polarisation of the input light. 17,21,46 This configuration overcomes the limited FOV, nevertheless, it lacks the facility of capturing two orthogonally polarised images. For a rapidly changing biological sample occupying a wide FOV, a novel configuration needs to be proposed.…”

Section: Introductionmentioning

confidence: 99%

A novel dual-path high-throughput acousto-optic tunable filter imaging spectropolarimeter

Abdlaty

Fang

2020

J. Spectral Imaging

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It is highly demanding to identify healthy and non-healthy species in a heterogeneous environment such as human tissues. In such a case, one identifier, such as a spectral fingerprint, might be inadequate. Therefore, additional identification is required, for instance, a polarisation measurement. In view of that, the development of a spectropolarimeter that captures two cross-polarised arrays of spectral images is a key requirement. To meet this requirement, an imager optical setup has been designed to provide spatial, spectral and polarisation preference information for species that exist in a heterogeneous environment, such as in medical tissue samples. The spectral and polarisation information is obtained employing an acousto-optic tunable filter and a polarising beam splitter, respectively. The optical imager is designed to operate in the visible-near infrared range (450–850 nm) with a spectral resolution of 3 nm. The spectropolarimeter design along with optical characterisation results are reported.

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Compressive space-dimensional dual-coded hyperspectral polarimeter (CSDHP) and interactive design method

Wang

liu

li³

et al. 2023

Opt. Express

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A compressive space-dimensional dual-coded hyperspectral polarimeter (CSDHP) and interactive design method are introduced. A digital micromirror device (DMD), a micro polarizer array detector (MPA), and a prism grating prism (PGP) are combined to achieve single-shot hyperspectral polarization imaging. The longitudinal chromatic aberration (LCA) and spectral smile of the system are both eliminated to guarantee the matching accuracy of DMD and MPA pixels. A 4D data cube with 100 channels and 3 Stocks parameters is reconstructed in the experiment. The feasibility and fidelity are verified from the image and spectral reconstruction evaluations. It is demonstrated that the target material can be distinguished by CSDHP.

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Design of hyper-spectral and full-polarization imager based on AOTF and LCVR

Cited by 3 publications

References 3 publications

Review of spectral and polarization imaging systems

Review of spectral and polarization imaging systems

A novel dual-path high-throughput acousto-optic tunable filter imaging spectropolarimeter

Compressive space-dimensional dual-coded hyperspectral polarimeter (CSDHP) and interactive design method

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