4. Raster-dot spectro-imagers
These spectro-imagers have a field of view extending in both directions: some can therefore take an instantaneous measurement of the spectro-image, while others require a scan, which is then carried out without modifying the field of view.
Instruments operating in this mode can be grouped into three families. The first is that of instruments which juxtapose images of the scene at the wavelengths of interest (paragraph 4.1 ). The second are those that use a dispersive element to spatially spread the spectra across the detection plane (paragraphs
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Raster-dot spectro-imagers
Spectro-imagers operating in raster-scroll mode
Bibliography
Websites
VIRTIS instrument (visible and infrared spectro-imager on board the European Space Agency's Rosetta probe):
http://servirtis.obspm.fr/virtis.html (page consulted in January 2010)
Instrument M3 (NASA's visible and infrared spectro-imager on board the Indian Space Research Organization's Chandrayaan-1...
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