NASA CASSINI Composite Infrared Spectrometer (CIRS)

1992 - 1994

NASA CASSINI Composite Infrared Spectrometer (CIRS)Project overview

Novel very broadband (7 to 17µm) antireflection coatings utilising PbTe/ZnSe/and BaF2 were researched, designed and manufactured for this project. The coatings were deposited on a 65mm diameter Germanium lenses for use in the CIRS (Composite Infrared Spectrometer) instrument which is to be flown on the NASA Cassini orbiter. The orbiter is due to be launched in 1996. The CIRS instrument will perform infrared spectroscopy experiments to determine characteristics of Saturn's atmosphere.

Delivered hardware

Description  Filter Type Quantity  Wavelength Region Substrate Material Dimensions 
Lens Broadband antireflection coating 1 channel 7.0 - 17.0 µm Germanium (Ge) 65.0 mm Dia x 8.0 mm T

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  • Science and Engineering Research Council (SERC)
  • Graseby Infrared

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