CARBO is a wide field of view imaging spectrometer for measuring CO, CO2, CH4 and solar-induced chlorophyll fluorescence (SIF). The key technological feature is an immersion grating that increases dispersion and reduces anamorphism for given design constraints, thus providing a more efficient sampling across the spectral band. Another novel design feature is polarization demultiplexing that provides additional information and improves grating efficiency. We present first data and atmospheric test results for a prototype of the 1598-1659 nm spectral band (used for CO2 and CH4 measurements).
We report on the design performance of a compact imaging spectrometer suitable for planetary missions with U-Class spacecraft. It is a fast (F/1.9) and wide field instrument covering the range 600-3600 nm with 10 nm sampling and a 1000 pixel by 18 μm wide slit. The spectrometer is designed for use with a digital readout focal plane array that further aids miniaturization.
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