Compact snapshot hyperspectral imaging instrument in the visible/near-infrared spectral band using CMOS sensor with integrated 4-directional wire grid polarizer array

Matthieu Porte; Yann Ferrec; Frédéric Bernard; Elisa Baldit; Nicolas Guerineau

doi:10.1117/12.3022825

28 May 2024 Compact snapshot hyperspectral imaging instrument in the visible/near-infrared spectral band using CMOS sensor with integrated 4-directional wire grid polarizer array

Matthieu Porte, Yann Ferrec, Frédéric Bernard, Elisa Baldit, Nicolas Guerineau

Author Affiliations +

Proceedings Volume 13083, SPIE Future Sensing Technologies 2024; 1308306 (2024) https://doi.org/10.1117/12.3022825
Event: SPIE Future Sensing Technologies, 2024, Yokohama, Japan

Abstract

Acquiring a hyperspectral image in a single frame enables the acquisition of fast phenomena (relatively to the whole acquisition time). One way to achieve such a snapshot configuration is to combine an interferometer and a lenslet array. A hyperspectral instrument using a birefringent interferometer operating in the visible/near-infrared wavelength band [500 nm: 850 nm] is presented. It has the advantages of being compact as the interferometer is placed close to the focal plane array. Additionally, we use a 4-directional wire grid polarizer array integrated to the focal plane array: such a device enables the measurement of the two complementary interferograms and of a fringe-free image in a single acquisition, which facilitates the spectral image reconstruction.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Matthieu Porte, Yann Ferrec, Frédéric Bernard, Elisa Baldit, and Nicolas Guerineau "Compact snapshot hyperspectral imaging instrument in the visible/near-infrared spectral band using CMOS sensor with integrated 4-directional wire grid polarizer array", Proc. SPIE 13083, SPIE Future Sensing Technologies 2024, 1308306 (28 May 2024); https://doi.org/10.1117/12.3022825

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