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Proceedings Paper

Synthesis of infrared filters for use in spaceflight systems
Author(s): Colin Cole; Roger Hunneman; John W. Bowen
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Paper Abstract

Progress is reported in the development of a new synthesis method for the design of filters and coatings for use in spaceborne infrared optics. This method uses the Golden Section optimization routine to make a search, using designated dielectric thin film combinations, for the coating design which fulfills the required spectral requirements. The final design is that which uses the least number of layers for the given thin film materials in the starting design. This synthesis method has successfully been used to design broadband anti-reflection coatings on infrared substrates. The 6 micrometers to 18 micrometers anti-reflection coating for the germanium optics of the HIRDLS instrument, to be flown on the NASA EOS-Chem satellite, is given as an example. By correctly defining the target function to describe any specific type of filter in the optimization part of the method, this synthesis method may be used to design general filters for use in spaceborne infrared optics.

Paper Details

Date Published: 4 November 1994
PDF: 9 pages
Proc. SPIE 2253, Optical Interference Coatings, (4 November 1994); doi: 10.1117/12.192137
Show Author Affiliations
Colin Cole, Univ. of Reading (United Kingdom)
Roger Hunneman, Univ. of Reading (United Kingdom)
John W. Bowen, Univ. of Reading (United Kingdom)

Published in SPIE Proceedings Vol. 2253:
Optical Interference Coatings
Florin Abeles, Editor(s)

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