Infrared filters and dichroics for the Advanced Along Track Scanning Radiometer (AATSR)
R Hunneman, G J Hawkins
Applied Optics, Vol 35, No 28, Pages 5524-5528 (1996)
The design and manufacture of the band-defining filters and their associated dichroic beam splitter for the 11- and the 12-µm infrared channels of the advanced along-track scanning radiometer are described. The filter requirements that have led to the choice of coating designs, coating materials, disposition of coatings, and effects of polarization are discussed. Overall spectral throughputs of the filter and dichroic interaction for the two channels are also presented.