12 June 1995 Imaging telescope-spectrometer for infrared sky surveys
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A new type of imaging telescope-spectrometer for surviving the sky aboard a satellite is described. A static Michelson interferometer in front of an objective with 2D-arrays in its focal plane is capable of providing interferograms both for point and extended sources. As an example, the telescope-spectrometer based on the 15-cm telescope of the IKON project and a plane-parallel Ge plate as a beamsplitter may have approximately equals 30 cm(superscript -1 spectral resolution in the range 3 - 20 micrometers . For higher resolution, such an objective interferometer has advantage over a dispersion spectrometer in the signal-to-noise ratio and is free from the disadvantage of an objective prism not providing spectra of extended sources.
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Igor V. Maslov, Igor V. Maslov, Gennadii B. Sholomitskii, Gennadii B. Sholomitskii, Arkadii E. Kuznetsov, Arkadii E. Kuznetsov, Michael A. Patrashin, Michael A. Patrashin, Leonid Sh. Olejnikov, Leonid Sh. Olejnikov, "Imaging telescope-spectrometer for infrared sky surveys", Proc. SPIE 2480, Imaging Spectrometry, (12 June 1995); doi: 10.1117/12.210880; https://doi.org/10.1117/12.210880

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