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Proceedings Paper • Open Access

Hyperspectral imager for components identification in the atmosphere
Author(s): Jean-Luc Dewandel; Didier Beghuin; Xavier Dubois; Philippe Antoine

Paper Abstract

Several applications require the identification of chemical elements during re-entry of material in the atmosphere. The materials can be from human origin or meteorites. The Automated Transfer Vehicle (ATV) re-entry has been filmed with conventional camera from airborne manual operation. In order to permit the identification of the separate elements from their glow, spectral analysis needs to be added to the video data. In a LET-SME contract with ESA, Lambda-X has built a Fourier Transform Imaging Spectrometer to permit, in a future work, to bring the technology to the readiness level required for the application. In this paper, the principles of the Fourier Transform Imaging spectroscopy are recalled, the different interferometers suitable for supporting the technique are reviewed and the selection process is explained. The final selection of the interferometer corresponds to a birefringent prism based common path shear interferometer. The design of the breadboard and its performances are presented in terms of spatial resolution, aperture, and spectral resolution. A discussion is open regarding perspective of the technique for other remote sensing applications compared to more usual push broom configurations.

Paper Details

Date Published: 20 November 2017
PDF: 5 pages
Proc. SPIE 10564, International Conference on Space Optics — ICSO 2012, 105643W (20 November 2017); doi: 10.1117/12.2309015
Show Author Affiliations
Jean-Luc Dewandel, LAMBDA-X sa (Belgium)
Didier Beghuin, LAMBDA-X sa (Belgium)
Xavier Dubois, LAMBDA-X sa (Belgium)
Philippe Antoine, LAMBDA-X sa (Belgium)

Published in SPIE Proceedings Vol. 10564:
International Conference on Space Optics — ICSO 2012
Bruno Cugny; Errico Armandillo; Nikos Karafolas, Editor(s)

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