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3 May 2010Noise properties of a corner-cube Michelson interferometer LWIR hyperspectral imager
Interferometric hyperspectral imagers using infrared focal plane array (FPA) sensors have received increasing interest
within the field of security and defence. Setups are commonly based upon either the Sagnac or the Michelson
configuration, where the former is usually preferred due to its mechanical robustness. However, the Michelson
configuration shows advantages in larger FOV due to better vignetting performance and improved signal-to-noise ratio
and cost reduction due to relaxation of beamsplitter specifications. Recently, a laboratory prototype of a more robust and
easy-to-align corner-cube Michelson hyperspectral imager has been demonstrated. The prototype is based upon an
uncooled bolometric FPA in the LWIR (8-14 μm) spectral band and in this paper the noise properties of this
hyperspectral imager are discussed.
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D. Bergstrom, I. Renhorn, T. Svensson, R. Persson, T. Hallberg, R. Lindell, G. Boreman, "Noise properties of a corner-cube Michelson interferometer LWIR hyperspectral imager," Proc. SPIE 7660, Infrared Technology and Applications XXXVI, 76602F (3 May 2010); https://doi.org/10.1117/12.851433