A hyperspectral imager based on a Fabry-Perot interferometer with dielectric mirrors

• DOI: 10.1364/oe.22.001824
• Publication Date: 2014-01-21T21:03:07Z
• Authors: Massimo Zucco; Marco Pisani; Valentina Caricato; Andrea Egidi
• Keywords: Equipment Failure Analysis; Interferometry; Fourier Analysis; Equipment Design; Image Enhancement; 01 natural sciences; Lenses; Molecular Imaging; 0104 chemical sciences

In this paper we present a new hyperspectral imager based on a Fabry-Perot interferometer with low reflectivity dielectric mirrors. This set-up has been validated by measuring hypercubes of scenes containing emitting bodies and reflective surfaces in the visible region and compared with success with reference spectra. The system is based on dielectric mirrors which, with respect to similar systems based on metallic mirrors, have lower losses at lower cost and are available off-the-shelf. The spectra calculation is carried out with a Fourier transform based algorithm which takes into account the not negligible dispersion of the mirrors.