16 October 2015 SIBI: A compact hyperspectral camera in the mid-infrared
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Recent developments in unmanned aerial vehicles have increased the demand for more and more compact optical systems. In order to bring solutions to this demand, several infrared systems are being developed at ONERA such as spectrometers, imaging devices, multispectral and hyperspectral imaging systems. In the field of compact infrared hyperspectral imaging devices, ONERA and Sagem Défense et Sécurité have collaborated to develop a prototype called SIBI, which stands for "Spectro-Imageur Birefringent Infrarouge". It is a static Fourier transform imaging spectrometer which operates in the mid-wavelength infrared spectral range and uses a birefringent lateral shearing interferometer. Up to now, birefringent interferometers have not been often used for hyperspectral imaging in the mid-infrared because of the lack of crystal manufacturers, contrary to the visible spectral domain where the production of uniaxial crystals like calcite are mastered for various optical applications. In the following, we will present the design and the realization of SIBI as well as the first experimental results.
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Armande Pola Fossi, Armande Pola Fossi, Yann Ferrec, Yann Ferrec, Roland Domel, Roland Domel, Christophe Coudrain, Christophe Coudrain, Nicolas Guerineau, Nicolas Guerineau, Nicolas Roux, Nicolas Roux, Oscar D'Almeida, Oscar D'Almeida, Marc Bousquet, Marc Bousquet, Emmanuel Kling, Emmanuel Kling, Hervé Sauer, Hervé Sauer, } "SIBI: A compact hyperspectral camera in the mid-infrared", Proc. SPIE 9649, Electro-Optical Remote Sensing, Photonic Technologies, and Applications IX, 96490U (16 October 2015); doi: 10.1117/12.2195241; https://doi.org/10.1117/12.2195241

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